ã¯ããã« Java8ã®æ°æ©è½ãStream APIã使ãå§ãã¦ã³ã¼ãã£ã³ã°ãæ ¼æ®µã«æ¥½ã«ãªãã¾ããã åå¿é²çã«ãµã³ãã«ã³ã¼ããæ¸ãåºãã¦ã¿ã¾ãããå°ããã¤è¿½å ãã¦ããäºå®ã§ãã Javaã¯ä½¿ã£ããã¨ãããã©ã©ã ãå¼ãStream APIã¯ããç¥ããªãã¨ããæ¹ã¯ãåèã«ãã¦ã¿ã¦ãã ããã ããªããªä½¿ã£ã¦ããæ¹ã¯ããããªä½¿ãæ¹ããããï¼ã¨æãã¦ããã ããã¨å¬ããã§ãã ã¡ãªã¿ã«ãªã©ã¤ãªã¼ç¤¾ã®Javaã«ãã颿°åããã°ã©ãã³ã° âJava 8ã©ã ãå¼ã¨Streamãã¨ã¦ãåèã«ãªãã¾ããã ãåææ¡ä»¶ãStream APIã®èª¬æã«ä½¿ç¨ãããªãã¸ã§ã¯ã public class Person { private String name; private int age; private List<Person> children; public Person(String name){/*...*


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