Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber<\/title><br \/>\n<\/head><br \/>\n<body><\/p>\n<p>Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber<\/p>\n<p>Java 8 ile gelen Stream API, koleksiyonlar\u0131 i\u015flemek i\u00e7in g\u00fc\u00e7l\u00fc ve okunabilir bir y\u00f6ntem sunar. Bu API’nin en kullan\u0131\u015fl\u0131 metodlar\u0131ndan biri de <code>distinct()<\/code> metodudur. Bu makalede, <code>distinct()<\/code> metodunu detayl\u0131 olarak inceleyece\u011fiz, nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 ve performans etkilerini ele alaca\u011f\u0131z. \u00d6ncelikle, ne i\u015fe yarad\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayal\u0131m. K\u0131saca, <code>distinct()<\/code> metodu, bir Stream’deki e\u015fsiz (unique) elemanlar\u0131 filtreleyerek yeni bir Stream olu\u015fturur. Ancak, e\u015fsizli\u011fin nas\u0131l belirlendi\u011fi \u00f6nemlidir.<\/p>\n<p><code>distinct()<\/code> metodu, her bir eleman\u0131n <code>equals()<\/code> metodunu kullanarak e\u015fitli\u011fini kontrol eder. Bu nedenle, s\u0131n\u0131f\u0131n\u0131zda do\u011fru bir <code>equals()<\/code> ve <code>hashCode()<\/code> metodu tan\u0131mlaman\u0131z kritik \u00f6nem ta\u015f\u0131r. E\u011fer bu metodlar\u0131 do\u011fru bir \u015fekilde tan\u0131mlamazsan\u0131z, <code>distinct()<\/code> beklendi\u011fi gibi \u00e7al\u0131\u015fmayabilir ve yanl\u0131\u015f sonu\u00e7lar \u00fcretebilir. \u00d6rne\u011fin, <code>equals()<\/code> metodu do\u011fru tan\u0131mlanmam\u0131\u015f bir nesne i\u00e7in, farkl\u0131 nesneler bile e\u015fit olarak kabul edilebilir.<\/p>\n<h2>distinct() Metodunun Kullan\u0131m\u0131<\/h2>\n<p><code>distinct()<\/code> metodu kullan\u0131m\u0131 olduk\u00e7a basittir. Bir Stream’e <code>distinct()<\/code> metodunu \u00e7a\u011f\u0131rman\u0131z yeterlidir. \u0130\u015fte basit bir \u00f6rnek:<\/p>\n<pre><code class=\"language-java\">\nList<Integer> numbers = Arrays.asList(1, 2, 2, 3, 4, 4, 5, 1);\nList<Integer> distinctNumbers = numbers.stream()\n .distinct()\n .collect(Collectors.toList());\nSystem.out.println(distinctNumbers); \/\/ \u00c7\u0131kt\u0131: [1, 2, 3, 4, 5]\n<\/code><\/pre>\n<p>Bu \u00f6rnekte, \u00f6ncelikle bir Integer listesi olu\u015fturuyoruz. Daha sonra, bu listeyi bir Stream’e d\u00f6n\u00fc\u015ft\u00fcr\u00fcyoruz ve <code>distinct()<\/code> metodunu kullanarak e\u015fsiz elemanlar\u0131 al\u0131yoruz. Son olarak, bu e\u015fsiz elemanlar\u0131 tekrar bir listeye d\u00f6n\u00fc\u015ft\u00fcr\u00fcyoruz. G\u00f6rd\u00fc\u011f\u00fcn\u00fcz gibi, sonu\u00e7ta yaln\u0131zca e\u015fsiz say\u0131lar i\u00e7eren bir liste elde ediyoruz.<\/p>\n<h2>Performans Etkileri<\/h2>\n<p><code>distinct()<\/code> metodu, Stream’deki t\u00fcm elemanlar\u0131 kar\u015f\u0131la\u015ft\u0131rarak \u00e7al\u0131\u015f\u0131r. Bu nedenle, \u00e7ok b\u00fcy\u00fck Stream’ler i\u00e7in performans etkisi g\u00f6z ard\u0131 edilemez. Performans\u0131n\u0131 iyile\u015ftirmek i\u00e7in, Stream’i \u00f6nceden s\u0131ralamak faydal\u0131 olabilir. Bunun nedeni, s\u0131ral\u0131 bir Stream’de e\u015fsiz elemanlar\u0131n daha h\u0131zl\u0131 bulunabilmesidir. Ancak, s\u0131ralama i\u015flemi de zaman alabilir, bu y\u00fczden b\u00fcy\u00fck verilerle \u00e7al\u0131\u015f\u0131yorsan\u0131z dikkatli olmak gerekir.<\/p>\n<p>Ayr\u0131ca, <code>distinct()<\/code> metodu, Stream’in i\u00e7erdi\u011fi eleman say\u0131s\u0131na ba\u011fl\u0131 olarak bellek t\u00fcketimini de art\u0131rabilir. E\u011fer \u00e7ok b\u00fcy\u00fck bir Stream ile \u00e7al\u0131\u015f\u0131yorsan\u0131z, <code>distinct()<\/code> kullan\u0131m\u0131ndan \u00f6nce Stream’i optimize etmek veya daha etkili bir yakla\u015f\u0131m bulmak gerekebilir. \u00d6rne\u011fin, e\u015fsiz elemanlar\u0131 daha verimli bir \u015fekilde i\u015flemek i\u00e7in HashSet gibi bir veri yap\u0131s\u0131 kullanabilirsiniz.<\/p>\n<h2>\u00d6rnekler ve Uygulama Alanlar\u0131<\/h2>\n<p><code>distinct()<\/code> metodu bir\u00e7ok farkl\u0131 senaryoda kullan\u0131labilir. \u00d6rne\u011fin, bir veritaban\u0131ndan al\u0131nan verilerde tekrar eden kay\u0131tlar\u0131 temizlemek i\u00e7in kullan\u0131labilir. Ayr\u0131ca, bir kullan\u0131c\u0131 listesinde tekrar eden kullan\u0131c\u0131lar\u0131 filtrelemek veya bir metinde tekrar eden kelimeleri bulmak i\u00e7in de kullan\u0131labilir. Yani, tekrar eden elemanlar\u0131n istenmedi\u011fi her yerde, <code>distinct()<\/code> metodu olduk\u00e7a kullan\u0131\u015fl\u0131d\u0131r. Bu metodun esnekli\u011fi ve kolay kullan\u0131m\u0131 onu Java geli\u015ftiricileri i\u00e7in de\u011ferli bir ara\u00e7 haline getirir.<\/p>\n<p>Daha detayl\u0131 bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> sitesini ziyaret edebilirsiniz. Ayr\u0131ca, Java Stream API hakk\u0131nda daha fazla bilgi edinmek i\u00e7in <a href=\"https:\/\/docs.oracle.com\/javase\/8\/docs\/api\/java\/util\/stream\/Stream.html#distinct--\">Oracle Java Dok\u00fcmanlar\u0131<\/a>‘na g\u00f6z atabilirsiniz.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/via.placeholder.com\/500x300\/007bff\/FFFFFF?text=Java+Stream+distinct()\" alt=\"Java Stream distinct() G\u00f6rseli\"><\/p>\n<p>Umar\u0131m bu makale, Java <code>Stream.distinct()<\/code> metodunu anlaman\u0131za yard\u0131mc\u0131 olmu\u015ftur. Herhangi bir sorunuz varsa, l\u00fctfen yorumlarda belirtin.<\/p>\n<p>#Etiketler: Java, Stream, distinct, e\u015fsiz, unique, performans, equals, hashCode, Stream API, Java 8, filtreleme, koleksiyonlar, programlama, Java geli\u015ftirme, Fatih Soysal<br \/>\n<\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber Java 8 ile gelen Stream API, koleksiyonlar\u0131 i\u015flemek…","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":[1],"tags":[],"class_list":{"0":"post-4098","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\n<title>Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber<\/title>\n<meta name=\"description\" content=\"Java 8 ile gelen Stream API, koleksiyonlar\u0131 i\u015flemek i\u00e7in g\u00fc\u00e7l\u00fc ve okunabilir bir y\u00f6ntem sunar. Bu API'nin en kullan\u0131\u015fl\u0131 metodlar\u0131ndan biri de distinct() metodudur. Bu makalede, distinct() metodunu detayl\u0131 olarak inceleyece\u011fiz, nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 ve performans etkilerini ele alaca\u011f\u0131z. \u00d6ncelikle, ne i\u015fe yarad\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayal\u0131m. K\u0131saca, distinct() metodu, bir Stream'deki e\u015fsiz (unique) elemanlar\u0131 filtreleyerek yeni bir Stream olu\u015fturur. 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Bu makalede, distinct() metodunu detayl\u0131 olarak inceleyece\u011fiz, nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 ve performans etkilerini ele alaca\u011f\u0131z. \u00d6ncelikle, ne i\u015fe yarad\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayal\u0131m. K\u0131saca, distinct() metodu, bir Stream'deki e\u015fsiz (unique) elemanlar\u0131 filtreleyerek yeni bir Stream olu\u015fturur. 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Ancak, e\u015fsizli\u011fin nas\u0131l belirlendi\u011fi \u00f6nemlidir.","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\/java-stream-distinct-metodu-ayrintili-rehber\/","og_locale":"tr_TR","og_type":"article","og_title":"Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber","og_description":"Java 8 ile gelen Stream API, koleksiyonlar\u0131 i\u015flemek i\u00e7in g\u00fc\u00e7l\u00fc ve okunabilir bir y\u00f6ntem sunar. Bu API'nin en kullan\u0131\u015fl\u0131 metodlar\u0131ndan biri de distinct() metodudur. Bu makalede, distinct() metodunu detayl\u0131 olarak inceleyece\u011fiz, nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 ve performans etkilerini ele alaca\u011f\u0131z. \u00d6ncelikle, ne i\u015fe yarad\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayal\u0131m. 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{"id":4098,"date":"2024-11-17T08:00:16","date_gmt":"2024-11-17T05:00:16","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/java-stream-distinct-metodu-ayrintili-rehber\/"},"modified":"2024-11-17T08:00:16","modified_gmt":"2024-11-17T05:00:16","slug":"java-stream-distinct-metodu-ayrintili-rehber","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/java-stream-distinct-metodu-ayrintili-rehber\/","title":{"rendered":"Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber"},"content":{"rendered":"

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\nJava Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber<\/title><br \/>\n<\/head><br \/>\n<body><\/p>\n<p>Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber<\/p>\n<p>Java 8 ile gelen Stream API, koleksiyonlar\u0131 i\u015flemek i\u00e7in g\u00fc\u00e7l\u00fc ve okunabilir bir y\u00f6ntem sunar. Bu API’nin en kullan\u0131\u015fl\u0131 metodlar\u0131ndan biri de <code>distinct()<\/code> metodudur. Bu makalede, <code>distinct()<\/code> metodunu detayl\u0131 olarak inceleyece\u011fiz, nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 ve performans etkilerini ele alaca\u011f\u0131z. \u00d6ncelikle, ne i\u015fe yarad\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayal\u0131m. K\u0131saca, <code>distinct()<\/code> metodu, bir Stream’deki e\u015fsiz (unique) elemanlar\u0131 filtreleyerek yeni bir Stream olu\u015fturur. Ancak, e\u015fsizli\u011fin nas\u0131l belirlendi\u011fi \u00f6nemlidir.<\/p>\n<p><code>distinct()<\/code> metodu, her bir eleman\u0131n <code>equals()<\/code> metodunu kullanarak e\u015fitli\u011fini kontrol eder. Bu nedenle, s\u0131n\u0131f\u0131n\u0131zda do\u011fru bir <code>equals()<\/code> ve <code>hashCode()<\/code> metodu tan\u0131mlaman\u0131z kritik \u00f6nem ta\u015f\u0131r. E\u011fer bu metodlar\u0131 do\u011fru bir \u015fekilde tan\u0131mlamazsan\u0131z, <code>distinct()<\/code> beklendi\u011fi gibi \u00e7al\u0131\u015fmayabilir ve yanl\u0131\u015f sonu\u00e7lar \u00fcretebilir. \u00d6rne\u011fin, <code>equals()<\/code> metodu do\u011fru tan\u0131mlanmam\u0131\u015f bir nesne i\u00e7in, farkl\u0131 nesneler bile e\u015fit olarak kabul edilebilir.<\/p>\n<h2>distinct() Metodunun Kullan\u0131m\u0131<\/h2>\n<p><code>distinct()<\/code> metodu kullan\u0131m\u0131 olduk\u00e7a basittir. Bir Stream’e <code>distinct()<\/code> metodunu \u00e7a\u011f\u0131rman\u0131z yeterlidir. \u0130\u015fte basit bir \u00f6rnek:<\/p>\n<pre><code class=\"language-java\">\nList<Integer> numbers = Arrays.asList(1, 2, 2, 3, 4, 4, 5, 1);\nList<Integer> distinctNumbers = numbers.stream()\n .distinct()\n .collect(Collectors.toList());\nSystem.out.println(distinctNumbers); \/\/ \u00c7\u0131kt\u0131: [1, 2, 3, 4, 5]\n<\/code><\/pre>\n<p>Bu \u00f6rnekte, \u00f6ncelikle bir Integer listesi olu\u015fturuyoruz. Daha sonra, bu listeyi bir Stream’e d\u00f6n\u00fc\u015ft\u00fcr\u00fcyoruz ve <code>distinct()<\/code> metodunu kullanarak e\u015fsiz elemanlar\u0131 al\u0131yoruz. Son olarak, bu e\u015fsiz elemanlar\u0131 tekrar bir listeye d\u00f6n\u00fc\u015ft\u00fcr\u00fcyoruz. G\u00f6rd\u00fc\u011f\u00fcn\u00fcz gibi, sonu\u00e7ta yaln\u0131zca e\u015fsiz say\u0131lar i\u00e7eren bir liste elde ediyoruz.<\/p>\n<h2>Performans Etkileri<\/h2>\n<p><code>distinct()<\/code> metodu, Stream’deki t\u00fcm elemanlar\u0131 kar\u015f\u0131la\u015ft\u0131rarak \u00e7al\u0131\u015f\u0131r. Bu nedenle, \u00e7ok b\u00fcy\u00fck Stream’ler i\u00e7in performans etkisi g\u00f6z ard\u0131 edilemez. Performans\u0131n\u0131 iyile\u015ftirmek i\u00e7in, Stream’i \u00f6nceden s\u0131ralamak faydal\u0131 olabilir. Bunun nedeni, s\u0131ral\u0131 bir Stream’de e\u015fsiz elemanlar\u0131n daha h\u0131zl\u0131 bulunabilmesidir. Ancak, s\u0131ralama i\u015flemi de zaman alabilir, bu y\u00fczden b\u00fcy\u00fck verilerle \u00e7al\u0131\u015f\u0131yorsan\u0131z dikkatli olmak gerekir.<\/p>\n<p>Ayr\u0131ca, <code>distinct()<\/code> metodu, Stream’in i\u00e7erdi\u011fi eleman say\u0131s\u0131na ba\u011fl\u0131 olarak bellek t\u00fcketimini de art\u0131rabilir. E\u011fer \u00e7ok b\u00fcy\u00fck bir Stream ile \u00e7al\u0131\u015f\u0131yorsan\u0131z, <code>distinct()<\/code> kullan\u0131m\u0131ndan \u00f6nce Stream’i optimize etmek veya daha etkili bir yakla\u015f\u0131m bulmak gerekebilir. \u00d6rne\u011fin, e\u015fsiz elemanlar\u0131 daha verimli bir \u015fekilde i\u015flemek i\u00e7in HashSet gibi bir veri yap\u0131s\u0131 kullanabilirsiniz.<\/p>\n<h2>\u00d6rnekler ve Uygulama Alanlar\u0131<\/h2>\n<p><code>distinct()<\/code> metodu bir\u00e7ok farkl\u0131 senaryoda kullan\u0131labilir. \u00d6rne\u011fin, bir veritaban\u0131ndan al\u0131nan verilerde tekrar eden kay\u0131tlar\u0131 temizlemek i\u00e7in kullan\u0131labilir. Ayr\u0131ca, bir kullan\u0131c\u0131 listesinde tekrar eden kullan\u0131c\u0131lar\u0131 filtrelemek veya bir metinde tekrar eden kelimeleri bulmak i\u00e7in de kullan\u0131labilir. Yani, tekrar eden elemanlar\u0131n istenmedi\u011fi her yerde, <code>distinct()<\/code> metodu olduk\u00e7a kullan\u0131\u015fl\u0131d\u0131r. Bu metodun esnekli\u011fi ve kolay kullan\u0131m\u0131 onu Java geli\u015ftiricileri i\u00e7in de\u011ferli bir ara\u00e7 haline getirir.<\/p>\n<p>Daha detayl\u0131 bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> sitesini ziyaret edebilirsiniz. Ayr\u0131ca, Java Stream API hakk\u0131nda daha fazla bilgi edinmek i\u00e7in <a href=\"https:\/\/docs.oracle.com\/javase\/8\/docs\/api\/java\/util\/stream\/Stream.html#distinct--\">Oracle Java Dok\u00fcmanlar\u0131<\/a>‘na g\u00f6z atabilirsiniz.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/via.placeholder.com\/500x300\/007bff\/FFFFFF?text=Java+Stream+distinct()\" alt=\"Java Stream distinct() G\u00f6rseli\"><\/p>\n<p>Umar\u0131m bu makale, Java <code>Stream.distinct()<\/code> metodunu anlaman\u0131za yard\u0131mc\u0131 olmu\u015ftur. Herhangi bir sorunuz varsa, l\u00fctfen yorumlarda belirtin.<\/p>\n<p>#Etiketler: Java, Stream, distinct, e\u015fsiz, unique, performans, equals, hashCode, Stream API, Java 8, filtreleme, koleksiyonlar, programlama, Java geli\u015ftirme, Fatih Soysal<br \/>\n<\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber Java 8 ile gelen Stream API, koleksiyonlar\u0131 i\u015flemek…","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":[1],"tags":[],"class_list":{"0":"post-4098","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\n<title>Java Stream.distinct() Metodu: Ayr\u0131nt\u0131l\u0131 Rehber<\/title>\n<meta name=\"description\" content=\"Java 8 ile gelen Stream API, koleksiyonlar\u0131 i\u015flemek i\u00e7in g\u00fc\u00e7l\u00fc ve okunabilir bir y\u00f6ntem sunar. Bu API'nin en kullan\u0131\u015fl\u0131 metodlar\u0131ndan biri de distinct() metodudur. Bu makalede, distinct() metodunu detayl\u0131 olarak inceleyece\u011fiz, nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 ve performans etkilerini ele alaca\u011f\u0131z. \u00d6ncelikle, ne i\u015fe yarad\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayal\u0131m. K\u0131saca, distinct() metodu, bir Stream'deki e\u015fsiz (unique) elemanlar\u0131 filtreleyerek yeni bir Stream olu\u015fturur. 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