{"id":5211,"date":"2010-08-31T20:06:41","date_gmt":"2010-08-31T11:06:41","guid":{"rendered":"http:\/\/www.sssg.org\/blogs\/hiro345\/?p=5211"},"modified":"2010-08-31T20:08:52","modified_gmt":"2010-08-31T11:08:52","slug":"%e6%96%87%e5%ad%97%e5%88%97%e3%81%8c%e5%90%8c%e3%81%98%e3%81%a7%e3%82%82-object-%e3%81%a8%e3%81%97%e3%81%a6%e3%81%af%e4%b8%80%e8%87%b4%e3%81%97%e3%81%aa%e3%81%84%e3%81%93%e3%81%a8%e3%81%8c%e3%81%82","status":"publish","type":"post","link":"https:\/\/www.hiro345.net\/blogs\/hiro345\/archives\/5211.html","title":{"rendered":"\u6587\u5b57\u5217\u304c\u540c\u3058\u3067\u3082 Object \u3068\u3057\u3066\u306f\u4e00\u81f4\u3057\u306a\u3044\u3053\u3068\u304c\u3042\u3063\u305f\u308a\u3059\u308b\u3093\u3067\u3059\u304b\uff1f> String"},"content":{"rendered":"

\u3042\u308b\u3088 (\u3053\u306e\u30bb\u30ea\u30d5\u306fHERO<\/a>\u304c\u597d\u304d\u306a\u4eba\u306f\u3088\u304f\u4f7f\u3046…\u306f\u305a )
\n\u300c\u6587\u5b57\u5217\u304c\u540c\u3058\u3067\u3082 Object \u3068\u3057\u3066\u306f\u4e00\u81f4\u3057\u306a\u3044\u3053\u3068\u304c\u3042\u3063\u305f\u308a\u3059\u308b\u3093\u3067\u3059\u304b\uff1f> String\u300d\u3068\u3044\u3046\u8cea\u554f\u304c\u30c4\u30a4\u30c3\u30bf\u30fc\u306b\u3042\u3063\u305f\u306e\u3067\u3001\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u307f\u305f\u3002\u3061\u306a\u307f\u306b\u3064\u3076\u3084\u3044\u305f\u4eba\u304c\u7591\u554f\u306b\u601d\u3063\u305f\u3053\u3068\u3092\u89e3\u6c7a\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3042\u308b\u4fdd\u8a3c\u306f\u306a\u3044\u3002\u304a\u904a\u3073\u3002<\/p>\n

public class Sample {
\n  public static void main(String[] args) {
\n    java.util.List<String> list = new java.util.LinkedList<String>();
\n    String s = "a";
\n    list.add("a");
\n    list.add(s);
\n    list.add(new String(s));
\n    list.add(new String("a"));
\n    for (String e : list) {
\n      System.out.println("----");
\n      System.out.println("a".equals(e));
\n      System.out.println("a" == e);
\n    }
\n  }
\n}<\/div>\n

\u7d50\u679c<\/p>\n

$ javac Sample.java
\n$ java Sample
\n----
\ntrue
\ntrue
\n----
\ntrue
\ntrue
\n----
\ntrue
\nfalse
\n----
\ntrue
\nfalse\n<\/div>\n

\u3053\u3046\u3044\u3046\u3053\u3068\u3067\u3057\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u3042\u308b\u3088 (\u3053\u306e\u30bb\u30ea\u30d5\u306fHERO\u304c\u597d\u304d\u306a\u4eba\u306f\u3088\u304f\u4f7f\u3046…\u306f\u305a )<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-5211","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/5211","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/comments?post=5211"}],"version-history":[{"count":5,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/5211\/revisions"}],"predecessor-version":[{"id":5220,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/5211\/revisions\/5220"}],"wp:attachment":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/media?parent=5211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/categories?post=5211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/tags?post=5211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}