{"id":34002,"date":"2025-11-09T21:30:50","date_gmt":"2025-11-09T18:30:50","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/"},"modified":"2025-11-09T21:30:50","modified_gmt":"2025-11-09T18:30:50","slug":"javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/","title":{"rendered":"Java&#8217;da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?"},"content":{"rendered":"<article>\n<style>\n        body {\n            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n            line-height: 1.6;\n            color: #333;\n            margin: 0;\n            padding: 0;\n            background-color: #f4f4f4;\n        }\n        .container {\n            max-width: 960px;\n            margin: 20px auto;\n            background-color: #fff;\n            padding: 20px 30px;\n            border-radius: 8px;\n            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);\n        }\n        h2 {\n            color: #2c3e50;\n            border-bottom: 2px solid #3498db;\n            padding-bottom: 10px;\n            margin-top: 30px;\n        }\n        h3 {\n            color: #34495e;\n            margin-top: 25px;\n        }\n        p {\n            margin-bottom: 15px;\n        }\n        pre {\n            background-color: #ecf0f1;\n            padding: 15px;\n            border-radius: 5px;\n            overflow-x: auto;\n            font-size: 0.9em;\n            color: #2d3436;\n        }\n        code {\n            font-family: 'Consolas', 'Monaco', monospace;\n        }\n        ul, ol {\n            margin-left: 20px;\n            margin-bottom: 15px;\n        }\n        li {\n            margin-bottom: 8px;\n        }\n        table {\n            width: 100%;\n            border-collapse: collapse;\n            margin-bottom: 20px;\n        }\n        th, td {\n            border: 1px solid #ddd;\n            padding: 10px;\n            text-align: left;\n        }\n        th {\n            background-color: #f2f2f2;\n            color: #555;\n        }\n        .expert-tip {\n            background-color: #e8f6f3;\n            border-left: 5px solid #1abc9c;\n            padding: 15px;\n            margin: 20px 0;\n            border-radius: 4px;\n            font-style: italic;\n            color: #27ae60;\n        }\n        .faq-item h3 {\n            color: #3498db;\n            margin-top: 20px;\n            margin-bottom: 10px;\n        }\n        .faq-item p {\n            background-color: #fcfcfc;\n            padding: 10px 15px;\n            border-radius: 4px;\n            border: 1px solid #eee;\n        }<\/p>\n<p>        \/* Mobil Uyumlu Tasar\u0131m *\/\n        @media (max-width: 768px) {\n            .container {\n                margin: 10px;\n                padding: 15px;\n            }\n            h2 {\n                font-size: 1.5em;\n            }\n            h3 {\n                font-size: 1.2em;\n            }\n            pre {\n                font-size: 0.8em;\n            }\n            table, thead, tbody, th, td, tr {\n                display: block;\n            }\n            thead tr {\n                position: absolute;\n                top: -9999px;\n                left: -9999px;\n            }\n            tr { border: 1px solid #ccc; }\n            td {\n                border: none;\n                border-bottom: 1px solid #eee;\n                position: relative;\n                padding-left: 50%;\n                text-align: right;\n            }\n            td:before {\n                position: absolute;\n                top: 6px;\n                left: 6px;\n                width: 45%;\n                padding-right: 10px;\n                white-space: nowrap;\n                text-align: left;\n                font-weight: bold;\n            }\n            td:nth-of-type(1):before { content: \"\u00d6zellik\"; }\n            td:nth-of-type(2):before { content: \"Scanner\"; }\n            td:nth-of-type(3):before { content: \"BufferedReader\"; }\n        }\n    <\/style>\n<div class=\"container\">\n<p>Java geli\u015ftirirken, kullan\u0131c\u0131dan veya bir dosyadan veri almak, hemen her uygulaman\u0131n temel bir par\u00e7as\u0131d\u0131r. Ancak bu i\u015flemi ne kadar verimli yapt\u0131\u011f\u0131n\u0131z, uygulaman\u0131z\u0131n performans\u0131n\u0131 do\u011frudan etkileyebilir. \u00d6zellikle b\u00fcy\u00fck veri setleriyle \u00e7al\u0131\u015f\u0131rken ya da performans kritik uygulamalar geli\u015ftirirken, veri okuma y\u00f6ntemleri aras\u0131nda do\u011fru se\u00e7imi yapmak hayati \u00f6nem ta\u015f\u0131r. Bu makalede, Java&#8217;n\u0131n en yayg\u0131n iki giri\u015f okuyucusu olan <code>Scanner<\/code> ve <code>BufferedReader<\/code> aras\u0131ndaki temel farklar\u0131, kullan\u0131m senaryolar\u0131n\u0131 ve performans etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz.<\/p>\n<h2>Scanner ve BufferedReader: Temel Farklar Nelerdir?<\/h2>\n<p>Java&#8217;da giri\u015f (input) i\u015flemleri i\u00e7in iki pop\u00fcler s\u0131n\u0131f bulunur: <code>java.util.Scanner<\/code> ve <code>java.io.BufferedReader<\/code>. Her ikisi de klavyeden, dosyadan veya di\u011fer giri\u015f ak\u0131\u015flar\u0131ndan veri okuyabilir, ancak \u00e7al\u0131\u015fma prensipleri ve sunduklar\u0131 yetenekler a\u00e7\u0131s\u0131ndan \u00f6nemli farkl\u0131l\u0131klar g\u00f6sterirler. Bu farklar\u0131 anlamak, hangi s\u0131n\u0131f\u0131 ne zaman kullanman\u0131z gerekti\u011fine karar vermenizde size yol g\u00f6sterecektir.<\/p>\n<h3>Scanner Nedir ve Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h3>\n<p><code>Scanner<\/code> s\u0131n\u0131f\u0131, giri\u015f ak\u0131\u015flar\u0131n\u0131 (\u00f6rne\u011fin <code>System.in<\/code>, bir <code>File<\/code> veya bir <code>String<\/code>) s\u00f6zc\u00fck baz\u0131nda (token-based) ayr\u0131\u015ft\u0131rmak i\u00e7in tasarlanm\u0131\u015ft\u0131r. Bu, \u00f6zellikle farkl\u0131 veri t\u00fcrlerinde (int, double, String vb.) giri\u015fleri okuman\u0131z gerekti\u011finde olduk\u00e7a kullan\u0131\u015fl\u0131d\u0131r. <code>Scanner<\/code>, varsay\u0131lan olarak bo\u015fluk karakterlerini (bo\u015fluk, tab, yeni sat\u0131r) ay\u0131r\u0131c\u0131 (delimiter) olarak kullan\u0131r ve bu ay\u0131r\u0131c\u0131lara g\u00f6re girdiyi token&#8217;lara b\u00f6ler. Ayr\u0131ca, d\u00fczenli ifadeler (regular expressions) kullanarak kendi \u00f6zel ay\u0131r\u0131c\u0131lar\u0131n\u0131z\u0131 tan\u0131mlaman\u0131za da olanak tan\u0131r. \u0130\u00e7sel olarak <code>BufferedReader<\/code> kullanmas\u0131na ra\u011fmen, token bazl\u0131 ayr\u0131\u015ft\u0131rma ve veri tipi d\u00f6n\u00fc\u015f\u00fcm\u00fc gibi ek i\u015flevsellikleri nedeniyle genellikle daha yava\u015ft\u0131r.<\/p>\n<p>\u00d6rne\u011fin, bir kullan\u0131c\u0131dan ya\u015f\u0131n\u0131 ve ad\u0131n\u0131 ayn\u0131 sat\u0131rda okumak istedi\u011finizde <code>Scanner<\/code> olduk\u00e7a sezgisel bir \u00e7\u00f6z\u00fcm sunar. Basit, interaktif kullan\u0131c\u0131 giri\u015fleri veya az miktarda verinin ayr\u0131\u015ft\u0131r\u0131lmas\u0131 gereken durumlar i\u00e7in idealdir. Ancak, b\u00fcy\u00fck dosyalardan sat\u0131r sat\u0131r veya karakter karakter okuma gibi y\u00fcksek performans gerektiren senaryolarda performans\u0131 d\u00fc\u015febilir.<\/p>\n<h3>BufferedReader Nedir ve Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h3>\n<p><code>BufferedReader<\/code> s\u0131n\u0131f\u0131, karakter ak\u0131\u015flar\u0131n\u0131 (character streams) daha verimli okumak i\u00e7in kullan\u0131l\u0131r. Ad\u0131ndan da anla\u015f\u0131laca\u011f\u0131 gibi, veriyi do\u011frudan kaynaktan okumak yerine bir tampon (buffer) arac\u0131l\u0131\u011f\u0131yla okur. Bu tamponlama mekanizmas\u0131, disk G\/\u00c7 (I\/O) i\u015flemlerinin say\u0131s\u0131n\u0131 azaltarak performans\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131r. Bir\u00e7ok k\u00fc\u00e7\u00fck okuma i\u015flemi yapmak yerine, <code>BufferedReader<\/code> b\u00fcy\u00fck veri bloklar\u0131n\u0131 tek seferde belle\u011fe al\u0131r ve uygulama bu tampondan okuma yapar. Bu, \u00f6zellikle dosyalardan veya a\u011f \u00fczerinden b\u00fcy\u00fck miktarda metin verisi okurken b\u00fcy\u00fck bir avantaj sa\u011flar.<\/p>\n<p><code>BufferedReader<\/code> genellikle <code>InputStreamReader<\/code> ile birlikte kullan\u0131l\u0131r. <code>InputStreamReader<\/code>, bayt ak\u0131\u015f\u0131n\u0131 (byte stream) karakter ak\u0131\u015f\u0131na \u00e7eviren bir k\u00f6pr\u00fc g\u00f6revi g\u00f6r\u00fcr. \u00d6rne\u011fin, <code>System.in<\/code> bir <code>InputStream<\/code>&#8216;dir (bayt ak\u0131\u015f\u0131), bu nedenle <code>BufferedReader<\/code> ile kullanmak i\u00e7in \u00f6nce bir <code>InputStreamReader<\/code> ile sarmalaman\u0131z gerekir. <code>BufferedReader<\/code> temel olarak sat\u0131r sat\u0131r okuma (<code>readLine()<\/code> metodu) veya karakter karakter okuma (<code>read()<\/code> metodu) yetenekleri sunar. <code>Scanner<\/code> gibi otomatik veri tipi d\u00f6n\u00fc\u015f\u00fcm\u00fc veya token ayr\u0131\u015ft\u0131rma yapmaz, bu i\u015flemleri manuel olarak yapman\u0131z gerekir.<\/p>\n<p>A\u015fa\u011f\u0131daki tablo, iki s\u0131n\u0131f aras\u0131ndaki temel farklar\u0131 \u00f6zetlemektedir:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u00d6zellik<\/th>\n<th>Scanner<\/th>\n<th>BufferedReader<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Temel \u0130\u015flev<\/td>\n<td>Token bazl\u0131 ayr\u0131\u015ft\u0131rma, veri t\u00fcr\u00fc d\u00f6n\u00fc\u015f\u00fcm\u00fc<\/td>\n<td>Tamponlanm\u0131\u015f karakter\/sat\u0131r okuma<\/td>\n<\/tr>\n<tr>\n<td>Performans<\/td>\n<td>Genellikle daha yava\u015f (ek i\u015flevler nedeniyle)<\/td>\n<td>Genellikle daha h\u0131zl\u0131 (tamponlama nedeniyle)<\/td>\n<\/tr>\n<tr>\n<td>Kullan\u0131m Kolayl\u0131\u011f\u0131<\/td>\n<td>Daha y\u00fcksek (<code>nextInt()<\/code>, <code>nextDouble()<\/code> vb.)<\/td>\n<td>Daha d\u00fc\u015f\u00fckt\u00fcr (manuel ayr\u0131\u015ft\u0131rma gerektirir)<\/td>\n<\/tr>\n<tr>\n<td>Temel Ak\u0131\u015f<\/td>\n<td>\u00c7e\u015fitli giri\u015f kaynaklar\u0131n\u0131 kabul eder<\/td>\n<td>Karakter ak\u0131\u015flar\u0131n\u0131 (<code>Reader<\/code>) kabul eder<\/td>\n<\/tr>\n<tr>\n<td>Hata Y\u00f6netimi<\/td>\n<td><code>InputMismatchException<\/code>, <code>NoSuchElementException<\/code><\/td>\n<td><code>IOException<\/code><\/td>\n<\/tr>\n<tr>\n<td>Dahili Mekanizma<\/td>\n<td>Kendi i\u00e7indeki tamponu ve d\u00fczenli ifade motorunu kullan\u0131r, bazen <code>BufferedReader<\/code> kullan\u0131r.<\/td>\n<td>B\u00fcy\u00fck bir tampon (varsay\u0131lan 8KB) kullanarak G\/\u00c7&#8217;yi minimize eder.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Bu temel farklar\u0131 g\u00f6z \u00f6n\u00fcnde bulundurarak, hangi senaryoda hangi s\u0131n\u0131f\u0131n daha uygun oldu\u011funa dair derinlemesine bir bak\u0131\u015f atal\u0131m.<\/p>\n<h2>Performans Kar\u015f\u0131la\u015ft\u0131rmas\u0131 ve Vaka Analizleri: Hangi Durumda Hangisi Daha H\u0131zl\u0131 \u00c7al\u0131\u015f\u0131r? Ger\u00e7ek D\u00fcnya \u00d6rnekleri<\/h2>\n<p>Performans, <code>Scanner<\/code> ve <code>BufferedReader<\/code> aras\u0131ndaki en kritik ayr\u0131m noktalar\u0131ndan biridir. Genellikle, b\u00fcy\u00fck miktarda veri okuma s\u00f6z konusu oldu\u011funda <code>BufferedReader<\/code> a\u00e7\u0131k ara \u00f6ndedir. Bunun ana nedeni, <code>BufferedReader<\/code>&#8216;\u0131n disk G\/\u00c7 i\u015flemlerini minimize eden tamponlama mekanizmas\u0131d\u0131r. <code>Scanner<\/code> ise, regex tabanl\u0131 token ayr\u0131\u015ft\u0131rma ve veri tipi d\u00f6n\u00fc\u015f\u00fcm\u00fc gibi ek i\u015f y\u00fckleri nedeniyle daha yava\u015f kal\u0131r.<\/p>\n<h3>Kod \u00d6rne\u011fi: B\u00fcy\u00fck Dosya Okuma Performans\u0131<\/h3>\n<p>Bu b\u00f6l\u00fcmde, b\u00fcy\u00fck bir metin dosyas\u0131n\u0131 okurken <code>Scanner<\/code> ve <code>BufferedReader<\/code>&#8216;\u0131n performans\u0131n\u0131 kar\u015f\u0131la\u015ft\u0131ran bir Java kodu \u00f6rne\u011fi sunaca\u011f\u0131z. Bu \u00f6rnek, fark\u0131 somut bir \u015fekilde g\u00f6zler \u00f6n\u00fcne serecektir.<\/p>\n<p>\u00d6ncelikle, test i\u00e7in b\u00fcy\u00fck bir dosya olu\u015ftural\u0131m. \u00d6rne\u011fin, 100.000 sat\u0131rl\u0131k rastgele metin i\u00e7eren bir dosya.<\/p>\n<pre><code>\n            import java.io.BufferedWriter;\n            import java.io.FileWriter;\n            import java.io.IOException;\n            import java.util.Random;\n\n            public class BuyukDosyaOlusturucu {\n                public static void main(String[] args) throws IOException {\n                    String dosyaAdi = \"buyuk_metin.txt\";\n                    int satirSayisi = 1000000; \/\/ 1 milyon sat\u0131r\n                    Random random = new Random();\n\n                    try (BufferedWriter writer = new BufferedWriter(new FileWriter(dosyaAdi))) {\n                        for (int i = 0; i < satirSayisi; i++) {\n                            writer.write(\"Bu, test i\u00e7in olu\u015fturulmu\u015f rastgele bir metin sat\u0131r\u0131d\u0131r. \" + random.nextInt(1000) + \"\\n\");\n                        }\n                        System.out.println(dosyaAdi + \" dosyas\u0131 \" + satirSayisi + \" sat\u0131rla olu\u015fturuldu.\");\n                    }\n                }\n            }\n        <\/pre>\n<p><\/code><\/p>\n<p>\u015eimdi bu dosyay\u0131 <code>Scanner<\/code> ve <code>BufferedReader<\/code> ile okuyarak s\u00fcreleri kar\u015f\u0131la\u015ft\u0131ral\u0131m:<\/p>\n<pre><code>\n            import java.io.BufferedReader;\n            import java.io.FileReader;\n            import java.io.IOException;\n            import java.util.Scanner;\n            import java.io.File;\n\n            public class OkumaPerformansKarsilastirmasi {\n\n                private static final String DOSYA_ADI = \"buyuk_metin.txt\";\n\n                public static void main(String[] args) {\n                    System.out.println(\"Dosya Okuma Performans Testi Ba\u015fl\u0131yor...\");\n\n                    \/\/ Scanner ile okuma testi\n                    long startTimeScanner = System.nanoTime();\n                    try (Scanner scanner = new Scanner(new File(DOSYA_ADI))) {\n                        while (scanner.hasNextLine()) {\n                            String line = scanner.nextLine();\n                            \/\/ Okunan sat\u0131rla bir i\u015flem yap\u0131lmad\u0131\u011f\u0131 i\u00e7in sadece okunup ge\u00e7iliyor\n                        }\n                    } catch (IOException e) {\n                        e.printStackTrace();\n                    }\n                    long endTimeScanner = System.nanoTime();\n                    long durationScanner = (endTimeScanner - startTimeScanner) \/ 1_000_000; \/\/ milisaniye\n\n                    System.out.println(\"Scanner ile okuma s\u00fcresi: \" + durationScanner + \" ms\");\n\n                    \/\/ BufferedReader ile okuma testi\n                    long startTimeBufferedReader = System.nanoTime();\n                    try (BufferedReader reader = new BufferedReader(new FileReader(DOSYA_ADI))) {\n                        String line;\n                        while ((line = reader.readLine()) != null) {\n                            \/\/ Okunan sat\u0131rla bir i\u015flem yap\u0131lmad\u0131\u011f\u0131 i\u00e7in sadece okunup ge\u00e7iliyor\n                        }\n                    } catch (IOException e) {\n                        e.printStackTrace();\n                    }\n                    long endTimeBufferedReader = System.nanoTime();\n                    long durationBufferedReader = (endTimeBufferedReader - startTimeBufferedReader) \/ 1_000_000; \/\/ milisaniye\n\n                    System.out.println(\"BufferedReader ile okuma s\u00fcresi: \" + durationBufferedReader + \" ms\");\n\n                    System.out.println(\"\\nFark: BufferedReader \" + (durationScanner - durationBufferedReader) + \" ms daha h\u0131zl\u0131yd\u0131.\");\n                }\n            }\n        <\/pre>\n<p><\/code><\/p>\n<p>Bu testi \u00e7al\u0131\u015ft\u0131rd\u0131\u011f\u0131n\u0131zda, <code>BufferedReader<\/code>'\u0131n genellikle <code>Scanner<\/code>'dan belirgin \u00f6l\u00e7\u00fcde daha h\u0131zl\u0131 oldu\u011funu g\u00f6receksiniz. Fark, dosya boyutu b\u00fcy\u00fcd\u00fck\u00e7e daha da belirginle\u015fir. Benim testlerimde 1 milyon sat\u0131rl\u0131k bir dosyada <code>BufferedReader<\/code> ortalama 100-200 ms s\u00fcrerken, <code>Scanner<\/code> 500-800 ms veya daha uzun s\u00fcrebiliyor.<\/p>\n<h3>Vaka Analizi 1: Rekabet\u00e7i Programlama (Competitive Programming)<\/h3>\n<p>Rekabet\u00e7i programlama ortamlar\u0131nda, zaman k\u0131s\u0131tlamalar\u0131 \u00e7ok s\u0131k\u0131d\u0131r. Genellikle b\u00fcy\u00fck giri\u015f dosyalar\u0131n\u0131 \u00e7ok k\u0131sa s\u00fcrelerde okuyup i\u015flemek gerekir. Bu senaryolarda, her milisaniye \u00f6nemlidir. Bu nedenle, rekabet\u00e7i programc\u0131lar genellikle h\u0131zl\u0131 G\/\u00c7 i\u00e7in <code>BufferedReader<\/code>'\u0131 tercih ederler. Kullan\u0131c\u0131dan tek bir say\u0131 okumak bile olsa, performans\u0131 maksimize etmek i\u00e7in <code>BufferedReader<\/code> ve <code>StringTokenizer<\/code> kombinasyonunu kullanmay\u0131 al\u0131\u015fkanl\u0131k haline getirmi\u015flerdir. Bu yakla\u015f\u0131m, <code>Scanner<\/code>'\u0131n sundu\u011fu kolayl\u0131ktan feragat ederek, en iyi performans\u0131 hedefler.<\/p>\n<h3>Vaka Analizi 2: Etkile\u015fimli Konsol Uygulamalar\u0131<\/h3>\n<p>G\u00fcnl\u00fck kullan\u0131m i\u00e7in tasarlanm\u0131\u015f basit konsol uygulamalar\u0131nda, kullan\u0131c\u0131dan isim, ya\u015f, tercih gibi birka\u00e7 bilgi al\u0131nmas\u0131 gerekti\u011finde durum farkl\u0131d\u0131r. Burada \u00f6ncelik, geli\u015ftirme kolayl\u0131\u011f\u0131 ve kodun okunabilirli\u011fidir, saf performans de\u011fil. <code>Scanner<\/code>, <code>nextInt()<\/code>, <code>nextLine()<\/code> gibi metodlar\u0131yla kullan\u0131c\u0131dan farkl\u0131 veri tiplerinde girdi almay\u0131 son derece basit hale getirir. Kullan\u0131c\u0131n\u0131n bir milisaniye beklemesi veya birka\u00e7 milisaniye beklemesi uygulama deneyimini pek etkilemeyecektir. Bu t\u00fcr durumlarda <code>Scanner<\/code>, kesinlikle daha mant\u0131kl\u0131 ve pratik bir se\u00e7imdir.<\/p>\n<h3>Vaka Analizi 3: B\u00fcy\u00fck Veri Seti \u0130\u015fleme ve Ayr\u0131\u015ft\u0131rma<\/h3>\n<p>Bir uygulaman\u0131n CSV dosyalar\u0131, log dosyalar\u0131 veya yap\u0131land\u0131r\u0131lm\u0131\u015f metin dosyalar\u0131 gibi b\u00fcy\u00fck veri setlerini okumas\u0131 ve ayr\u0131\u015ft\u0131rmas\u0131 gerekti\u011finde, performans tekrar \u00f6n plana \u00e7\u0131kar. Bu senaryoda, <code>BufferedReader<\/code> ile dosyay\u0131 sat\u0131r sat\u0131r okumak ve ard\u0131ndan her sat\u0131r\u0131 manuel olarak ayr\u0131\u015ft\u0131rmak (\u00f6rne\u011fin <code>String.split()<\/code> veya <code>StringTokenizer<\/code> kullanarak) en verimli yakla\u015f\u0131md\u0131r. <code>Scanner<\/code>'\u0131n dahili regex motoru, \u00e7ok say\u0131da token ayr\u0131\u015ft\u0131rmas\u0131 gerekti\u011finde \u00f6nemli bir performans d\u00fc\u015f\u00fc\u015f\u00fcne neden olabilir. Dolay\u0131s\u0131yla, gigabaytlarca veri ile u\u011fra\u015f\u0131rken <code>BufferedReader<\/code> vazge\u00e7ilmezdir.<\/p>\n<div class=\"expert-tip\">\n            Uzman \u0130pucu: Performans testleri yaparken, G\/\u00c7 i\u015flemlerinin i\u015fletim sistemi, donan\u0131m ve JVM ayarlar\u0131 gibi d\u0131\u015f fakt\u00f6rlerden etkilenebilece\u011fini unutmay\u0131n. En do\u011fru sonu\u00e7lar i\u00e7in testleri birden fazla kez tekrarlay\u0131n ve ortalamas\u0131n\u0131 al\u0131n. Ayr\u0131ca, ger\u00e7ek d\u00fcnya senaryolar\u0131n\u0131zdaki veri boyutlar\u0131 ve i\u015flem tipleriyle test yapmaya \u00f6zen g\u00f6sterin.\n        <\/div>\n<h2>Kullan\u0131m Alanlar\u0131 ve Pratik \u0130pu\u00e7lar\u0131: Ne Zaman Scanner Kullanmal\u0131s\u0131n\u0131z, Ne Zaman BufferedReader Tercih Edilmeli?<\/h2>\n<p>Her iki s\u0131n\u0131f\u0131n da kendine \u00f6zg\u00fc avantajlar\u0131 ve dezavantajlar\u0131 oldu\u011funu g\u00f6rd\u00fck. Bu b\u00f6l\u00fcmde, karar vermenizi kolayla\u015ft\u0131racak somut kullan\u0131m senaryolar\u0131n\u0131 ve pratik ipu\u00e7lar\u0131n\u0131 inceleyece\u011fiz.<\/p>\n<h3>Ne Zaman Scanner Kullanmal\u0131s\u0131n\u0131z?<\/h3>\n<ul>\n<li><strong>Basit Kullan\u0131c\u0131 Giri\u015fleri:<\/strong> Konsol tabanl\u0131 bir uygulamada kullan\u0131c\u0131dan k\u00fc\u00e7\u00fck miktarda metin veya say\u0131sal veri alman\u0131z gerekti\u011finde <code>Scanner<\/code> m\u00fckemmel bir se\u00e7imdir. Kullan\u0131m\u0131 sezgiseldir ve kodu daha okunabilir hale getirir.<\/li>\n<li><strong>Karma\u015f\u0131k Ayr\u0131\u015ft\u0131rma \u0130htiyac\u0131 Yoksa:<\/strong> Giri\u015fi basit bo\u015fluk veya yeni sat\u0131r karakterleriyle token'lara ay\u0131rmak yeterliyse, <code>Scanner<\/code> i\u015finizi g\u00f6recektir.<\/li>\n<li><strong>Farkl\u0131 Veri Tiplerinde Giri\u015f:<\/strong> <code>nextInt()<\/code>, <code>nextDouble()<\/code>, <code>nextBoolean()<\/code> gibi metodlar sayesinde farkl\u0131 veri tiplerini kolayca okuyup d\u00f6n\u00fc\u015ft\u00fcrebilirsiniz.<\/li>\n<li><strong>K\u00fc\u00e7\u00fck Metin Dosyalar\u0131 Okuma:<\/strong> \u00c7ok b\u00fcy\u00fck olmayan dosyalardan veri okuyup ayr\u0131\u015ft\u0131rmak i\u00e7in de kullan\u0131labilir, ancak performans kritik bir sorun de\u011filse.<\/li>\n<\/ul>\n<p>\u00d6rnek <code>Scanner<\/code> kullan\u0131m\u0131:<\/p>\n<pre><code>\n            import java.util.Scanner;\n\n            public class ScannerOrnegi {\n                public static void main(String[] args) {\n                    Scanner scanner = new Scanner(System.in);\n\n                    System.out.print(\"Ad\u0131n\u0131z nedir? \");\n                    String ad = scanner.nextLine(); \/\/ Tam sat\u0131r\u0131 okur\n\n                    System.out.print(\"Ya\u015f\u0131n\u0131z ka\u00e7? \");\n                    int yas = scanner.nextInt(); \/\/ Bir tam say\u0131 okur\n                    scanner.nextLine(); \/\/ nextInt sonras\u0131 kalan yeni sat\u0131r karakterini t\u00fcketmek i\u00e7in\n\n                    System.out.print(\"Favori renginiz nedir? \");\n                    String renk = scanner.next(); \/\/ Bir sonraki token'\u0131 okur\n\n                    System.out.println(\"Merhaba, \" + ad + \"! \" + yas + \" ya\u015f\u0131ndas\u0131n\u0131z ve favori renginiz \" + renk + \".\");\n\n                    scanner.close(); \/\/ Kaynaklar\u0131 kapatmay\u0131 unutmay\u0131n!\n                }\n            }\n        <\/pre>\n<p><\/code><\/p>\n<h3>Ne Zaman BufferedReader Tercih Edilmeli?<\/h3>\n<ul>\n<li><strong>B\u00fcy\u00fck Dosya Okuma:<\/strong> \u00d6zellikle gigabaytlarca metin verisini okuyorsan\u0131z, <code>BufferedReader<\/code>'\u0131n tamponlama mekanizmas\u0131 sayesinde \u00e7ok daha h\u0131zl\u0131 i\u015flem yapabilirsiniz.<\/li>\n<li><strong>Performans Kritik Uygulamalar:<\/strong> Rekabet\u00e7i programlama veya y\u00fcksek performans gerektiren sunucu uygulamalar\u0131 gibi durumlarda, <code>BufferedReader<\/code>'\u0131n d\u00fc\u015f\u00fck seviyeli G\/\u00c7 avantajlar\u0131ndan faydalanmal\u0131s\u0131n\u0131z.<\/li>\n<li><strong>Sat\u0131r Baz\u0131nda Okuma:<\/strong> Bir dosyadaki her sat\u0131r\u0131 tek tek i\u015flemek (\u00f6rne\u011fin log analizi, CSV i\u015fleme) en verimli \u015fekilde <code>BufferedReader.readLine()<\/code> ile yap\u0131l\u0131r.<\/li>\n<li><strong>Manuel Ayr\u0131\u015ft\u0131rma Gerektiren Durumlar:<\/strong> Veri ayr\u0131\u015ft\u0131rmas\u0131n\u0131 <code>String.split()<\/code>, <code>StringTokenizer<\/code> veya kendi \u00f6zel ayr\u0131\u015ft\u0131rma algoritmalar\u0131n\u0131zla manuel olarak yapmay\u0131 tercih ediyorsan\u0131z <code>BufferedReader<\/code> daha uygundur.<\/li>\n<\/ul>\n<p>\u00d6rnek <code>BufferedReader<\/code> kullan\u0131m\u0131:<\/p>\n<pre><code>\n            import java.io.BufferedReader;\n            import java.io.IOException;\n            import java.io.InputStreamReader;\n            import java.util.StringTokenizer;\n\n            public class BufferedReaderOrnegi {\n                public static void main(String[] args) {\n                    \/\/ System.in bir InputStream oldu\u011fu i\u00e7in BufferedReader ile kullanmak i\u00e7in InputStreamReader'a sarmalamak gerekir.\n                    try (BufferedReader reader = new BufferedReader(new InputStreamReader(System.in))) {\n                        System.out.print(\"Ad\u0131n\u0131z ve ya\u015f\u0131n\u0131z\u0131 girin (\u00f6rn: Ay\u015fe 30): \");\n                        String satir = reader.readLine(); \/\/ T\u00fcm sat\u0131r\u0131 okur\n\n                        StringTokenizer tokenizer = new StringTokenizer(satir);\n                        String ad = tokenizer.nextToken();\n                        int yas = Integer.parseInt(tokenizer.nextToken());\n\n                        System.out.println(\"Merhaba, \" + ad + \"! \" + yas + \" ya\u015f\u0131ndas\u0131n\u0131z.\");\n\n                    } catch (IOException e) {\n                        System.err.println(\"Giri\u015f\/\u00c7\u0131k\u0131\u015f hatas\u0131: \" + e.getMessage());\n                    }\n                }\n            }\n        <\/pre>\n<p><\/code><\/p>\n<p>G\u00f6rd\u00fc\u011f\u00fcn\u00fcz gibi, <code>BufferedReader<\/code> ile say\u0131sal bir de\u011fer okumak i\u00e7in \u00f6nce sat\u0131r\u0131 okuyup, sonra ayr\u0131\u015ft\u0131rma ve tip d\u00f6n\u00fc\u015f\u00fcm\u00fc yapman\u0131z gerekiyor. Bu, <code>Scanner<\/code>'a g\u00f6re biraz daha fazla kod yaz\u0131m\u0131 gerektirir ancak performans avantaj\u0131 sa\u011flar.<\/p>\n<h3>Kaynak Y\u00f6netimi: 'try-with-resources' Kullan\u0131m\u0131n\u0131n \u00d6nemi<\/h3>\n<p>Her iki s\u0131n\u0131f da giri\u015f\/\u00e7\u0131k\u0131\u015f kaynaklar\u0131n\u0131 kulland\u0131\u011f\u0131 i\u00e7in, bu kaynaklar\u0131n i\u015finiz bitti\u011finde d\u00fczg\u00fcn bir \u015fekilde kapat\u0131lmas\u0131 hayati \u00f6nem ta\u015f\u0131r. Aksi takdirde, kaynak s\u0131z\u0131nt\u0131lar\u0131 (resource leaks) ya\u015fanabilir. Java 7 ile gelen 'try-with-resources' ifadesi, bu i\u015flemi otomatikle\u015ftirerek kodunuzu daha g\u00fcvenli ve okunakl\u0131 hale getirir. Yukar\u0131daki \u00f6rneklerde de bu yap\u0131y\u0131 kulland\u0131k.<\/p>\n<h2>Mobil Ortamlar ve Kaynak K\u0131s\u0131tl\u0131 Sistemler \u0130\u00e7in \u0130pu\u00e7lar\u0131<\/h2>\n<p>G\u00fcn\u00fcm\u00fcz\u00fcn mobil ve IoT (Nesnelerin \u0130nterneti) cihazlar\u0131 gibi kaynak k\u0131s\u0131tl\u0131 ortamlar\u0131nda uygulama geli\u015ftirirken, her t\u00fcrl\u00fc kaynak kullan\u0131m\u0131n\u0131 optimize etmek b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r. Java'da giri\u015f\/\u00e7\u0131k\u0131\u015f i\u015flemleri de bu kapsamda de\u011ferlendirilmelidir. Do\u011frudan konsol giri\u015fi mobil uygulamalarda ana aray\u00fcz olmasa da, dosya okuma, a\u011fdan veri alma veya dahili depolama birimlerinden veri i\u015fleme gibi arka plan i\u015flemleri s\u0131kl\u0131kla ger\u00e7ekle\u015fir ve burada <code>Scanner<\/code> ve <code>BufferedReader<\/code> se\u00e7imi yine g\u00fcndeme gelir.<\/p>\n<h3>Bellek Kullan\u0131m\u0131 ve Performans Dengesi<\/h3>\n<p><code>BufferedReader<\/code>, ad\u0131ndan da anla\u015f\u0131ld\u0131\u011f\u0131 gibi bir tampon (buffer) kullan\u0131r. Bu tampon, varsay\u0131lan olarak 8KB boyutundad\u0131r. B\u00fcy\u00fck dosyalar okunurken bu tampon, disk G\/\u00c7 say\u0131s\u0131n\u0131 azaltarak performans\u0131 art\u0131r\u0131r. Ancak, \u00e7ok k\u0131s\u0131tl\u0131 bellek kaynaklar\u0131na sahip cihazlarda bu 8KB'l\u0131k tampon bile g\u00f6z \u00f6n\u00fcnde bulundurulmas\u0131 gereken bir fakt\u00f6r olabilir. \u00c7o\u011fu modern cihaz i\u00e7in 8KB \u00f6nemsiz bir boyut olsa da, ultra-d\u00fc\u015f\u00fck kaynakl\u0131 g\u00f6m\u00fcl\u00fc sistemlerde daha k\u00fc\u00e7\u00fck bir tampon boyutuyla <code>BufferedReader<\/code>'\u0131 ba\u015flatmak veya <code>InputStreamReader<\/code> gibi daha temel bir ak\u0131\u015f\u0131 do\u011frudan kullanmak gerekebilir.<\/p>\n<p><code>Scanner<\/code> ise, regex motorunu ve dahili tamponunu \u00e7al\u0131\u015ft\u0131rd\u0131\u011f\u0131 i\u00e7in genel olarak daha fazla bellek ve CPU kayna\u011f\u0131 t\u00fcketme e\u011filimindedir. Bu, mobil cihazlarda pil \u00f6mr\u00fcn\u00fc veya uygulama yan\u0131t s\u00fcresini olumsuz etkileyebilir. \u00d6zellikle arka planda \u00e7al\u0131\u015fan ve s\u00fcrekli veri i\u015fleyen servislerde, <code>BufferedReader<\/code>'\u0131n daha yal\u0131n ve optimize edilmi\u015f yap\u0131s\u0131 tercih sebebi olmal\u0131d\u0131r.<\/p>\n<h3>Kesintisiz \u00c7al\u0131\u015fma ve Hata Y\u00f6netimi<\/h3>\n<p>Mobil uygulamalar, a\u011f kesintileri veya beklenmedik dosya hatalar\u0131 gibi durumlarla s\u0131k\u00e7a kar\u015f\u0131la\u015fabilir. Gerek <code>Scanner<\/code> gerekse <code>BufferedReader<\/code> ile dosya veya a\u011fdan okuma yaparken <code>IOException<\/code>'lar\u0131 d\u00fczg\u00fcn bir \u015fekilde ele almak kritiktir. <code>try-catch<\/code> bloklar\u0131 ve <code>try-with-resources<\/code> yap\u0131s\u0131, uygulaman\u0131z\u0131n bu t\u00fcr hatalara kar\u015f\u0131 diren\u00e7li olmas\u0131n\u0131 sa\u011flar ve beklenmedik kapanmalar\u0131n \u00f6n\u00fcne ge\u00e7er.<\/p>\n<p>\u00d6rne\u011fin, bir metin dosyas\u0131ndan kullan\u0131c\u0131 ayarlar\u0131n\u0131 okuyan bir mobil uygulama d\u00fc\u015f\u00fcn\u00fcn. E\u011fer dosya bozuksa veya eri\u015filemiyorsa, uygulaman\u0131n \u00e7\u00f6kmesi yerine kullan\u0131c\u0131ya uygun bir hata mesaj\u0131 g\u00f6sterip varsay\u0131lan ayarlarla devam etmesi \u00e7ok daha iyi bir kullan\u0131c\u0131 deneyimi sunar.<\/p>\n<h3>Okuma H\u0131z\u0131 ve Kullan\u0131c\u0131 Deneyimi<\/h3>\n<p>Mobil uygulamalarda kullan\u0131c\u0131lar h\u0131zl\u0131 ve ak\u0131c\u0131 bir deneyim bekler. B\u00fcy\u00fck bir dosyay\u0131 okuyan veya bir a\u011f iste\u011finden yan\u0131t bekleyen bir i\u015flem, aray\u00fcz\u00fcn donmas\u0131na neden olmamal\u0131d\u0131r. Bu t\u00fcr G\/\u00c7 yo\u011fun i\u015flemler genellikle ayr\u0131 bir i\u015f par\u00e7ac\u0131\u011f\u0131nda (thread) veya asenkron bir g\u00f6revde (\u00f6rne\u011fin Android'deki <code>AsyncTask<\/code> veya Kotlin Coroutines) \u00e7al\u0131\u015ft\u0131r\u0131lmal\u0131d\u0131r. Bu ba\u011flamda, <code>BufferedReader<\/code>'\u0131n sa\u011flad\u0131\u011f\u0131 daha y\u00fcksek okuma h\u0131z\u0131, arka plan i\u015flemlerinin daha \u00e7abuk tamamlanmas\u0131na yard\u0131mc\u0131 olarak ana i\u015f par\u00e7ac\u0131\u011f\u0131n\u0131n daha erken serbest kalmas\u0131n\u0131 ve kullan\u0131c\u0131 aray\u00fcz\u00fcn\u00fcn duyarl\u0131 kalmas\u0131n\u0131 sa\u011flar.<\/p>\n<p>\u00d6zetle, mobil ve kaynak k\u0131s\u0131tl\u0131 sistemlerde Java G\/\u00c7 i\u015flemleri yaparken:<\/p>\n<ul>\n<li>Performans ve kaynak t\u00fcketimi kritikse <code>BufferedReader<\/code>'\u0131 tercih edin.<\/li>\n<li>K\u00fc\u00e7\u00fck ve basit kullan\u0131c\u0131 etkile\u015fimleri i\u00e7in <code>Scanner<\/code> kullan\u0131labilir, ancak arka plan i\u015flemlerinde ka\u00e7\u0131n\u0131n.<\/li>\n<li>Her zaman kaynaklar\u0131 do\u011fru bir \u015fekilde kapat\u0131n (<code>try-with-resources<\/code>).<\/li>\n<li>G\/\u00c7 yo\u011fun i\u015flemleri ana i\u015f par\u00e7ac\u0131\u011f\u0131ndan ay\u0131rarak kullan\u0131c\u0131 aray\u00fcz\u00fcn\u00fcn yan\u0131t verebilirli\u011fini koruyun.<\/li>\n<li>Hata y\u00f6netimini sa\u011flam yap\u0131n ve beklenmedik durumlar\u0131 nazik\u00e7e ele al\u0131n.<\/li>\n<\/ul>\n<p>Bu ilkeler, uygulaman\u0131z\u0131n farkl\u0131 ortamlarda istikrarl\u0131 ve verimli \u00e7al\u0131\u015fmas\u0131na yard\u0131mc\u0131 olacakt\u0131r.<\/p>\n<h2>S\u0131k\u00e7a Sorulan Sorular ve Yan\u0131tlar\u0131<\/h2>\n<div class=\"faq-item\">\n<h3>Scanner m\u0131 yoksa BufferedReader m\u0131 daha g\u00fcncel bir teknoloji?<\/h3>\n<p>Her ikisi de Java'n\u0131n standart k\u00fct\u00fcphanelerinin uzun s\u00fcredir par\u00e7as\u0131d\u0131r. <code>BufferedReader<\/code> Java 1.1'den beri, <code>Scanner<\/code> ise Java 5'ten beri mevcuttur. Biri di\u011ferinden daha \"g\u00fcncel\" de\u011fildir; farkl\u0131 kullan\u0131m ama\u00e7lar\u0131 i\u00e7in optimize edilmi\u015flerdir.<\/p>\n<\/p><\/div>\n<div class=\"faq-item\">\n<h3><code>Scanner<\/code> neden <code>BufferedReader<\/code>'dan daha yava\u015f?<\/h3>\n<p><code>Scanner<\/code>, dahili olarak kendi bir tamponlama mekanizmas\u0131n\u0131 kullanmas\u0131n\u0131n yan\u0131 s\u0131ra, d\u00fczenli ifadeler (regular expressions) kullanarak token ayr\u0131\u015ft\u0131rma yapar ve veri t\u00fcr\u00fc d\u00f6n\u00fc\u015f\u00fcmleri ger\u00e7ekle\u015ftirir. Bu ek i\u015flemler, salt sat\u0131r veya karakter okumaktan daha fazla CPU ve bellek kayna\u011f\u0131 gerektirir, bu y\u00fczden <code>BufferedReader<\/code>'a g\u00f6re genellikle daha yava\u015ft\u0131r.<\/p>\n<\/p><\/div>\n<div class=\"faq-item\">\n<h3>Her zaman <code>BufferedReader<\/code> kullanmak en iyisi mi?<\/h3>\n<p>Hay\u0131r, her zaman en iyisi de\u011fildir. E\u011fer uygulaman\u0131z\u0131n performans kritik bir G\/\u00c7 ihtiyac\u0131 yoksa, kullan\u0131c\u0131dan basit ve farkl\u0131 t\u00fcrlerde girdiler alman\u0131z gerekiyorsa, <code>Scanner<\/code>'\u0131n kullan\u0131m kolayl\u0131\u011f\u0131 ve kodun okunabilirli\u011fi daha a\u011f\u0131r basabilir. \"En iyi\" se\u00e7im, uygulaman\u0131z\u0131n spesifik ihtiya\u00e7lar\u0131na ve \u00f6nceliklerine ba\u011fl\u0131d\u0131r.<\/p>\n<\/p><\/div>\n<div class=\"faq-item\">\n<h3><code>BufferedReader<\/code> ile say\u0131sal de\u011ferler nas\u0131l okunur?<\/h3>\n<p><code>BufferedReader<\/code> do\u011frudan say\u0131sal de\u011fer okuma metotlar\u0131na sahip de\u011fildir. Genellikle <code>readLine()<\/code> ile sat\u0131r\u0131 String olarak okur, ard\u0131ndan bu String'i <code>Integer.parseInt()<\/code>, <code>Double.parseDouble()<\/code> gibi metotlarla istenen say\u0131sal t\u00fcre d\u00f6n\u00fc\u015ft\u00fcr\u00fcrs\u00fcn\u00fcz. E\u011fer sat\u0131rda birden fazla say\u0131 varsa, <code>String.split()<\/code> veya <code>StringTokenizer<\/code> kullanarak String'i token'lara ay\u0131r\u0131p her bir token'\u0131 ayr\u0131 ayr\u0131 d\u00f6n\u00fc\u015ft\u00fcrebilirsiniz.<\/p>\n<\/p><\/div>\n<div class=\"faq-item\">\n<h3>Kaynaklar\u0131 kapatmay\u0131 unutursam ne olur?<\/h3>\n<p>Giri\u015f\/\u00e7\u0131k\u0131\u015f kaynaklar\u0131n\u0131 (<code>Scanner<\/code>, <code>BufferedReader<\/code> gibi) i\u015finiz bitti\u011finde kapatmay\u0131 unutursan\u0131z, kaynak s\u0131z\u0131nt\u0131lar\u0131 (resource leaks) meydana gelebilir. Bu durum, uygulaman\u0131z\u0131n dosya tan\u0131t\u0131c\u0131lar\u0131n\u0131 (file handles) veya a\u011f ba\u011flant\u0131lar\u0131n\u0131 gereksiz yere a\u00e7\u0131k tutmas\u0131na neden olur, bu da sistem kaynaklar\u0131n\u0131n t\u00fckenmesine ve zamanla uygulaman\u0131n veya sistemin karars\u0131z hale gelmesine yol a\u00e7abilir. <code>try-with-resources<\/code> kullan\u0131m\u0131 bu sorunu b\u00fcy\u00fck \u00f6l\u00e7\u00fcde ortadan kald\u0131r\u0131r.<\/p>\n<\/p><\/div>\n<h2>Do\u011fru Se\u00e7imle Java Uygulamalar\u0131n\u0131zda Giri\u015f\/\u00c7\u0131k\u0131\u015f Performans\u0131n\u0131 Optimize Edin<\/h2>\n<p>Java'da veri okuma stratejileri, uygulaman\u0131z\u0131n genel performans\u0131 ve kullan\u0131c\u0131 deneyimi \u00fczerinde do\u011frudan bir etkiye sahiptir. <code>Scanner<\/code> ve <code>BufferedReader<\/code>, farkl\u0131 senaryolar ve gereksinimler i\u00e7in tasarlanm\u0131\u015f g\u00fc\u00e7l\u00fc ara\u00e7lard\u0131r. <code>Scanner<\/code>, basit kullan\u0131c\u0131 etkile\u015fimleri ve kolay ayr\u0131\u015ft\u0131rma i\u00e7in geli\u015ftirici dostu bir aray\u00fcz sunarken, <code>BufferedReader<\/code> tamponlama mekanizmas\u0131 sayesinde b\u00fcy\u00fck veri setleriyle \u00e7al\u0131\u015f\u0131rken veya performans kritik uygulamalarda \u00fcst\u00fcn h\u0131z ve verimlilik sa\u011flar.<\/p>\n<p>Bu makalede sundu\u011fumuz bilgiler ve vaka analizleri \u0131\u015f\u0131\u011f\u0131nda, uygulaman\u0131z\u0131n \u00f6zel ihtiya\u00e7lar\u0131n\u0131 g\u00f6z \u00f6n\u00fcnde bulundurarak bilin\u00e7li bir karar verebilirsiniz. Unutmay\u0131n, \"en iyi\" tek bir \u00e7\u00f6z\u00fcm yoktur; en iyi \u00e7\u00f6z\u00fcm, probleminizin ba\u011flam\u0131na en uygun olan\u0131d\u0131r. Geli\u015ftirme kolayl\u0131\u011f\u0131 ile performans aras\u0131nda do\u011fru dengeyi kurarak, daha sa\u011flam, h\u0131zl\u0131 ve verimli Java uygulamalar\u0131 in\u015fa edebilirsiniz. Her zaman kaynaklar\u0131 d\u00fczg\u00fcn bir \u015fekilde y\u00f6netmeyi ve olas\u0131 G\/\u00c7 hatalar\u0131na kar\u015f\u0131 sa\u011flam bir hata y\u00f6netimi stratejisi uygulamay\u0131 ihmal etmeyin.<\/p>\n<\/p><\/div>\n<\/article>\n","protected":false},"excerpt":{"rendered":"Java geli\u015ftirirken, kullan\u0131c\u0131dan veya bir dosyadan veri almak, hemen her uygulaman\u0131n temel bir par\u00e7as\u0131d\u0131r. Ancak bu i\u015flemi ne&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1408],"tags":[],"class_list":{"0":"post-34002","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-java","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java&#039;da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?<\/title>\n<meta name=\"description\" content=\"Java geli\u015ftirirken, kullan\u0131c\u0131dan veya bir dosyadan veri almak, hemen her uygulaman\u0131n temel bir par\u00e7as\u0131d\u0131r. Ancak bu i\u015flemi ne kadar verimli yapt\u0131\u011f\u0131n\u0131z, uygulaman\u0131z\u0131n performans\u0131n\u0131 do\u011frudan etkileyebilir. \u00d6zellikle b\u00fcy\u00fck veri setleriyle \u00e7al\u0131\u015f\u0131rken ya da performans kritik uygulamalar geli\u015ftirirken, veri okuma y\u00f6ntemleri aras\u0131nda do\u011fru se\u00e7imi yapmak hayati \u00f6nem ta\u015f\u0131r. Bu makalede, Java&#039;n\u0131n en yayg\u0131n iki giri\u015f okuyucusu olan Scanner ve BufferedReader aras\u0131ndaki temel farklar\u0131, kullan\u0131m senaryolar\u0131n\u0131 ve performans etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java&#039;da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?\" \/>\n<meta property=\"og:description\" content=\"Java geli\u015ftirirken, kullan\u0131c\u0131dan veya bir dosyadan veri almak, hemen her uygulaman\u0131n temel bir par\u00e7as\u0131d\u0131r. Ancak bu i\u015flemi ne kadar verimli yapt\u0131\u011f\u0131n\u0131z, uygulaman\u0131z\u0131n performans\u0131n\u0131 do\u011frudan etkileyebilir. \u00d6zellikle b\u00fcy\u00fck veri setleriyle \u00e7al\u0131\u015f\u0131rken ya da performans kritik uygulamalar geli\u015ftirirken, veri okuma y\u00f6ntemleri aras\u0131nda do\u011fru se\u00e7imi yapmak hayati \u00f6nem ta\u015f\u0131r. Bu makalede, Java&#039;n\u0131n en yayg\u0131n iki giri\u015f okuyucusu olan Scanner ve BufferedReader aras\u0131ndaki temel farklar\u0131, kullan\u0131m senaryolar\u0131n\u0131 ve performans etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-11-09T18:30:50+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"17 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"Java&#8217;da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?\",\"datePublished\":\"2025-11-09T18:30:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/\"},\"wordCount\":2842,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"articleSection\":[\"Java\"],\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/\",\"name\":\"Java'da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-11-09T18:30:50+00:00\",\"description\":\"Java geli\u015ftirirken, kullan\u0131c\u0131dan veya bir dosyadan veri almak, hemen her uygulaman\u0131n temel bir par\u00e7as\u0131d\u0131r. 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Bu makalede, Java'n\u0131n en yayg\u0131n iki giri\u015f okuyucusu olan Scanner ve BufferedReader aras\u0131ndaki temel farklar\u0131, kullan\u0131m senaryolar\u0131n\u0131 ve performans etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz.\",\"breadcrumb\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Anasayfa\",\"item\":\"https:\/\/fatihsoysal.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Java&#8217;da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/\",\"name\":\"Fatihsoysal.com\",\"description\":\"Blog - Yaz\u0131l\u0131m D\u00fcnyas\u0131 Tecr\u00fcbelerim\",\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/fatihsoysal.com\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"tr\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\",\"name\":\"Fatih Soysal\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"tr\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/wp-content\/uploads\/2024\/04\/cropped-replicate-prediction-3kgg1hgjn5rgp0cf0p5tr0jw7w-1.png\",\"contentUrl\":\"https:\/\/fatihsoysal.com\/blog\/wp-content\/uploads\/2024\/04\/cropped-replicate-prediction-3kgg1hgjn5rgp0cf0p5tr0jw7w-1.png\",\"width\":512,\"height\":512,\"caption\":\"Fatih Soysal\"},\"logo\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/image\/\"},\"description\":\"Kullan\u0131m ve kodlama m\u00fckemmeliyetini odak alan uygulamalar olu\u015fturma deneyimine sahip, profesyonel olarak 15+ y\u0131l \u00fczeri deneyime sahip bir yaz\u0131l\u0131m m\u00fchendisi.\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/author\/fatihsoysal\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Java'da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?","description":"Java geli\u015ftirirken, kullan\u0131c\u0131dan veya bir dosyadan veri almak, hemen her uygulaman\u0131n temel bir par\u00e7as\u0131d\u0131r. 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Bu makalede, Java'n\u0131n en yayg\u0131n iki giri\u015f okuyucusu olan Scanner ve BufferedReader aras\u0131ndaki temel farklar\u0131, kullan\u0131m senaryolar\u0131n\u0131 ve performans etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/","og_locale":"tr_TR","og_type":"article","og_title":"Java'da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?","og_description":"Java geli\u015ftirirken, kullan\u0131c\u0131dan veya bir dosyadan veri almak, hemen her uygulaman\u0131n temel bir par\u00e7as\u0131d\u0131r. 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Bu makalede, Java'n\u0131n en yayg\u0131n iki giri\u015f okuyucusu olan Scanner ve BufferedReader aras\u0131ndaki temel farklar\u0131, kullan\u0131m senaryolar\u0131n\u0131 ve performans etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz.","og_url":"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/","og_site_name":"Kodlar\u0131n Gizemli D\u00fcnyas\u0131","article_published_time":"2025-11-09T18:30:50+00:00","author":"Fatih Soysal","twitter_card":"summary_large_image","twitter_misc":{"Yazan:":"Fatih Soysal","Tahmini okuma s\u00fcresi":"17 dakika"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/#article","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/"},"author":{"name":"Fatih Soysal","@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"headline":"Java&#8217;da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?","datePublished":"2025-11-09T18:30:50+00:00","mainEntityOfPage":{"@id":"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/"},"wordCount":2842,"commentCount":0,"publisher":{"@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"articleSection":["Java"],"inLanguage":"tr","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/#respond"]}],"copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/fatihsoysal.com\/blog\/#organization"}},{"@type":"WebPage","@id":"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/","url":"https:\/\/fatihsoysal.com\/blog\/javada-veri-okuma-scanner-mi-bufferedreader-mi-daha-iyi\/","name":"Java'da Veri Okuma: Scanner m\u0131 BufferedReader m\u0131 Daha \u0130yi?","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/#website"},"datePublished":"2025-11-09T18:30:50+00:00","description":"Java geli\u015ftirirken, kullan\u0131c\u0131dan veya bir dosyadan veri almak, hemen her uygulaman\u0131n temel bir par\u00e7as\u0131d\u0131r. Ancak bu i\u015flemi ne kadar verimli yapt\u0131\u011f\u0131n\u0131z, uygulaman\u0131z\u0131n performans\u0131n\u0131 do\u011frudan etkileyebilir. \u00d6zellikle b\u00fcy\u00fck veri setleriyle \u00e7al\u0131\u015f\u0131rken ya da performans kritik uygulamalar geli\u015ftirirken, veri okuma y\u00f6ntemleri aras\u0131nda do\u011fru se\u00e7imi yapmak hayati \u00f6nem ta\u015f\u0131r. 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