\u4f8b\u5982：
\nchar c1 = 'A';
\nchar c2 = 'A';
\nSystem.out.println(c1 == c2); \/\/ true（\u5b57\u7b26\u7f16\u7801\u503c\u76f8\u7b49） <\/p>\n
String s1 = new String("hello");
\nString s2 = new String("hello");
\nSystem.out.println(s1 == s2); \/\/ false（\u5730\u5740\u4e0d\u540c）\u6bcf\u6b21\u8c03\u7528 new \u90fd\u4f1a\u5728\u5806\u5185\u5b58\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 String \u5bf9\u8c61，\u5373\u4f7f\u5185\u5bb9\u76f8\u540c，\u5730\u5740\u4e5f\u4e0d\u540c\u3002 <\/p>\n
\u5bf9\u4e8e Integer \u5bf9\u8c61，\u5f53\u503c\u5728 -128 \u5230 127 \u4e4b\u95f4\u65f6，\u4f1a\u590d\u7528\u7f13\u5b58\u5bf9\u8c61，\u5bfc\u81f4 == \u4e5f\u8fd4\u56de true：<\/p>\n
Integer a = 100; \/\/ \u81ea\u52a8\u88c5\u7bb1，\u5b9e\u9645\u8c03\u7528 Integer.valueOf(100)
\nInteger b = 100;
\nSystem.out.println(a == b); \/\/ true（\u7f13\u5b58\u590d\u7528，\u5730\u5740\u76f8\u540c）
\n\u200b
\nInteger c = 200;
\nInteger d = 200;
\nSystem.out.println(c == d); \/\/ false（\u8d85\u51fa\u7f13\u5b58\u8303\u56f4，\u5730\u5740\u4e0d\u540c） <\/p>\n
public boolean equals(Object obj) {
\n \u00a0 return (this == obj); \/\/ Object\u7c7b\u7684\u539f\u59cb\u5b9e\u73b0
\n}
\nString s1 = new String("hello");
\nString s2 = new String("hello");
\nSystem.out.println(s1.equals(s2)); \/\/ true（\u5185\u5bb9\u76f8\u540c） <\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb721\u6b21\uff0c\u70b9\u8d5e12\u6b21\uff0c\u6536\u85cf10\u6b21\u3002\/ false\uff08\u5730\u5740\u4e0d\u540c\uff09\u6bcf\u6b21\u8c03\u7528 new \u90fd\u4f1a\u5728\u5806\u5185\u5b58\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 String \u5bf9\u8c61\uff0c\u5373\u4f7f\u5185\u5bb9\u76f8\u540c\uff0c\u5730\u5740\u4e5f\u4e0d\u540c\u3002\/\/ false\uff08\u8d85\u51fa\u7f13\u5b58\u8303\u56f4\uff0c\u5730\u5740\u4e0d\u540c\uff09System.out.println(s1.equals(s2));\/\/ true\uff08\u7f13\u5b58\u590d\u7528\uff0c\u5730\u5740\u76f8\u540c\uff09<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,426,190],"topic":[],"class_list":["post-42591","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-jvm","tag-190"],"yoast_head":"\n