Java’da this ve super Anahtar Kelimeleri: Kal\u0131t\u0131m\u0131n Temelleri<\/p>\n
Merhaba! Bug\u00fcn Java’daki Yukar\u0131daki \u00f6rnekte, Bu \u00f6rnekte, Bazen, Sonu\u00e7 olarak, Java, this, super, kal\u0131t\u0131m, nesne y\u00f6nelimli programlama, OOP, \u00fcst s\u0131n\u0131f, alt s\u0131n\u0131f, superclass, subclass, programlama, kodlama, yaz\u0131l\u0131m geli\u015ftirme<\/p>\n","protected":false},"excerpt":{"rendered":"Java’da this ve super Anahtar Kelimeleri: Kal\u0131t\u0131m\u0131n Temelleri Merhaba! Bug\u00fcn Java’daki this ve super anahtar kelimelerini, \u00f6zellikle kal\u0131t\u0131m…","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-18944","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\nthis<\/code> ve super<\/code> anahtar kelimelerini, \u00f6zellikle kal\u0131t\u0131m ba\u011flam\u0131nda, detayl\u0131 bir \u015fekilde inceleyece\u011fiz. Bu iki anahtar kelime, nesne y\u00f6nelimli programlaman\u0131n temel ta\u015flar\u0131ndan biri olan kal\u0131t\u0131m\u0131 daha iyi anlamam\u0131z\u0131 ve kodlar\u0131m\u0131z\u0131 daha temiz, okunabilir ve y\u00f6netilebilir hale getirmemizi sa\u011flar. \u00d6ncelikle, kavramlar\u0131 ayr\u0131 ayr\u0131 ele al\u0131p daha sonra birlikte nas\u0131l \u00e7al\u0131\u015ft\u0131klar\u0131n\u0131 g\u00f6rece\u011fiz.<\/p>\nthis Anahtar Kelimesi<\/h2>\n
this<\/code> anahtar kelimesi, mevcut nesnenin bir referans\u0131n\u0131 temsil eder. Ba\u015fka bir deyi\u015fle, this<\/code>, \u015fu an \u00e7al\u0131\u015fmakta olan nesnenin t\u00fcm \u00f6zelliklerine ve y\u00f6ntemlerine eri\u015fim sa\u011flamam\u0131z\u0131 sa\u011flar. Bu \u00f6zellikle, s\u0131n\u0131f \u00fcyeleriyle ayn\u0131 ada sahip yerel de\u011fi\u015fkenleri kulland\u0131\u011f\u0131m\u0131zda olduk\u00e7a \u00f6nemlidir. this<\/code> kullanarak, s\u0131n\u0131f \u00fcyesini belirgin bir \u015fekilde \u00e7a\u011f\u0131r\u0131p kar\u0131\u015f\u0131kl\u0131\u011f\u0131 \u00f6nleyebiliriz.<\/p>\n\npublic class ThisExample {\n int x; \/\/ S\u0131n\u0131f \u00fcyesi\n\n public ThisExample(int x) {\n this.x = x; \/\/ this, s\u0131n\u0131f \u00fcyesini g\u00f6sterir.\n }\n\n public void printX() {\n System.out.println(this.x); \/\/ this, s\u0131n\u0131f \u00fcyesine eri\u015fir.\n }\n}\n<\/code><\/pre>\nThisExample<\/code> s\u0131n\u0131f\u0131n\u0131n yap\u0131c\u0131s\u0131nda, yerel de\u011fi\u015fken x<\/code> ile s\u0131n\u0131f \u00fcyesi x<\/code> aras\u0131nda bir ayr\u0131m yap\u0131lmas\u0131 gerekiyor. this.x = x;<\/code> sat\u0131r\u0131 sayesinde s\u0131n\u0131f \u00fcyesi x<\/code>‘e de\u011feri atan\u0131r. Aksi takdirde derleyici, bu iki de\u011fi\u015fkeni birbirine kar\u0131\u015ft\u0131r\u0131r ve beklenmedik sonu\u00e7lar do\u011furabilir.<\/p>\nsuper Anahtar Kelimesi<\/h2>\n
super<\/code> anahtar kelimesi ise, \u00fcst s\u0131n\u0131f\u0131n (superclass) \u00fcyelerine eri\u015fim sa\u011flamak i\u00e7in kullan\u0131l\u0131r. Kal\u0131t\u0131m kulland\u0131\u011f\u0131m\u0131zda, alt s\u0131n\u0131flar (subclass) \u00fcst s\u0131n\u0131flar\u0131n\u0131n \u00f6zelliklerini ve y\u00f6ntemlerini miras al\u0131r. Ancak, alt s\u0131n\u0131fta \u00fcst s\u0131n\u0131ftaki bir \u00fcye ile ayn\u0131 ada sahip bir \u00fcye tan\u0131mlad\u0131\u011f\u0131m\u0131zda, \u00fcst s\u0131n\u0131f\u0131n \u00fcyesine eri\u015fmek i\u00e7in super<\/code> anahtar kelimesini kullanmam\u0131z gerekir.<\/p>\n\npublic class Animal {\n String name;\n\n public Animal(String name) {\n this.name = name;\n }\n\n public void makeSound() {\n System.out.println(\"Ses \u00e7\u0131kar\u0131yor...\");\n }\n}\n\npublic class Dog extends Animal {\n String breed;\n\n public Dog(String name, String breed) {\n super(name); \/\/ \u00dcst s\u0131n\u0131f\u0131n yap\u0131c\u0131s\u0131n\u0131 \u00e7a\u011f\u0131r\u0131r.\n this.breed = breed;\n }\n\n public void makeSound() {\n super.makeSound(); \/\/ \u00dcst s\u0131n\u0131f\u0131n makeSound() metodunu \u00e7a\u011f\u0131r\u0131r.\n System.out.println(\"Havl\u0131yor...\");\n }\n}\n<\/code><\/pre>\nDog<\/code> s\u0131n\u0131f\u0131 Animal<\/code> s\u0131n\u0131f\u0131ndan kal\u0131t\u0131m al\u0131yor. Dog<\/code> s\u0131n\u0131f\u0131n\u0131n yap\u0131c\u0131s\u0131, super(name);<\/code> sat\u0131r\u0131yla Animal<\/code> s\u0131n\u0131f\u0131n\u0131n yap\u0131c\u0131s\u0131n\u0131 \u00e7a\u011f\u0131r\u0131r. Benzer \u015fekilde, makeSound()<\/code> metodunda, super.makeSound();<\/code> sat\u0131r\u0131yla Animal<\/code> s\u0131n\u0131f\u0131n\u0131n makeSound()<\/code> metodunu \u00e7a\u011f\u0131r\u0131r ve daha sonra kendi \u00f6zel davran\u0131\u015f\u0131n\u0131 ekler.<\/p>\nthis ve super’in Birlikte Kullan\u0131m\u0131<\/h2>\n
this<\/code> ve super<\/code> anahtar kelimelerini ayn\u0131 anda kullanmam\u0131z gerekebilir. \u00d6rne\u011fin, bir alt s\u0131n\u0131fta, hem kendi \u00fcyelerine hem de \u00fcst s\u0131n\u0131f\u0131n \u00fcyelerine eri\u015fmemiz gerekebilir. Bu durum, kodun okunabilirli\u011fini ve anla\u015f\u0131l\u0131rl\u0131\u011f\u0131n\u0131 art\u0131r\u0131r. Do\u011fru \u015fekilde kullan\u0131ld\u0131\u011f\u0131nda, kodumuzda daha az hata yapmam\u0131z\u0131 sa\u011flar.<\/p>\nthis<\/code> ve super<\/code> anahtar kelimeleri Java’da nesne y\u00f6nelimli programlamada olduk\u00e7a \u00f6nemlidir. Bu anahtar kelimeleri do\u011fru bir \u015fekilde kullanarak, kodumuzun daha okunabilir, bak\u0131m yap\u0131lmas\u0131 daha kolay ve hataya daha az e\u011filimli olmas\u0131n\u0131 sa\u011flayabiliriz. Daha fazla bilgi i\u00e7in fatihsoysal.com<\/a> sitesini ziyaret edebilirsiniz. Ayr\u0131ca, Java kal\u0131t\u0131m\u0131 hakk\u0131nda daha fazla bilgi edinmek i\u00e7in Oracle Java dok\u00fcmanlar\u0131n\u0131<\/a> inceleyebilirsiniz.<\/p>\n#Etiketler<\/h3>\n