\u672c\u7bc7\u65e8\u5728\u5e6b\u52a9\u6e96\u5099\u5b78\u7fd2Java\u4ee5\u53ca\u525b\u63a5\u89f8Java\u7684\u670b\u53cb\u8a8d\u8b58\u3001\u638c\u63e1\u548c\u4f7f\u7528static\u3001this\u3001super\u3001final\u9019\u5e7e\u500b\u95dc\u9375\u5b57\u7684\u4f7f\u7528\u3002
\nJava\u535a\u5927\u7cbe\u6df1\uff0c\u6211\u4e5f\u662f\u4e00\u4f4d\u6b63\u5728\u5b78\u7fd2\u548c\u4f7f\u7528Java\u7684\u611b\u597d\u8005\uff0c\u6587\u4e2d\u96e3\u514d\u6709\u4e0d\u59a5\u4e4b\u8655\uff0c\u6b61\u8fce\u6307\u6b63\u3002<\/p>\n
\u4e00\u3001static<\/strong><\/p>\n \u8acb\u5148\u770b\u4e0b\u9762\u9019\u6bb5\u7a0b\u5f0f\uff1a<\/p>\n public class Hello{ \u770b\u904e\u9019\u6bb5\u7a0b\u5f0f\uff0c\u5c0d\u65bc\u5927\u591a\u6578\u5b78\u904eJava \u7684\u5f9e\u4f86\u8aaa\uff0c\u90fd\u4e0d\u964c\u751f\u3002 \u57281\u8655\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u975c\u614b\u7684\u65b9\u6cd5\u540d\u70bamain\uff0c\u9019\u5c31\u610f\u5473\u8457\u544a\u8a34Java\u7de8\u8b6f\u5668\uff0c\u6211\u9019\u500b\u65b9\u6cd5\u4e0d\u9700\u8981\u5275\u5efa\u4e00\u500b\u6b64\u985e\u7684\u5c0d\u8c61\u5373\u53ef\u4f7f\u7528\u3002 javac Hello.java \u9019\u5c31\u662f\u4f60\u904b\u884c\u7684\u904e\u7a0b\uff0c\u7b2c\u4e00\u884c\u7528\u4f86\u7de8\u8b6fHello.java\u9019\u500b\u6587\u4ef6\uff0c\u57f7\u884c\u5b8c\u5f8c\uff0c\u5982\u679c\u4f60\u67e5\u770b\u76ee\u524d\uff0c\u6703\u767c\u73fe\u591a\u4e86\u4e00\u500bHello.class\u6587\u4ef6\uff0c public void println(String x)\u3002<\/p>\n \u597d\u4e86\uff0c\u73fe\u5728\u4f60\u61c9\u8a72\u660e\u767d\u70ba\u4ec0\u9ebc\u6211\u5011\u8981\u90a3\u6a23\u8abf\u7528\u4e86\uff0cout\u662fSystem\u7684\u4e00\u500b\u975c\u614b\u8b8a\u91cf\uff0c\u6240\u4ee5\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\uff0c\u800cout\u6240\u5c6c\u7684\u985e\u6709\u4e00\u500bprintln\u65b9\u6cd5\u3002<\/p>\n \u975c\u614b\u65b9\u6cd5<\/p>\n \u901a\u5e38\uff0c\u5728\u4e00\u500b\u985e\u4e2d\u5b9a\u7fa9\u4e00\u500b\u65b9\u6cd5\u70bastatic\uff0c\u90a3\u5c31\u662f\u8aaa\uff0c\u7121\u9700\u672c\u985e\u7684\u5c0d\u8c61\u5373\u53ef\u8abf\u7528\u6b64\u65b9\u6cd5\u3002\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n class Simple{ \u8abf\u7528\u4e00\u500b\u975c\u614b\u65b9\u6cd5\u5c31\u662f\u201c\u985e\u540d.\u65b9\u6cd5\u540d\u201d,\u975c\u614b\u65b9\u6cd5\u7684\u4f7f\u7528\u5f88\u7c21\u55ae\u5982\u4e0a\u6240\u793a\u3002\u4e00\u822c\u4f86\u8aaa\uff0c\u975c\u614b\u65b9\u6cd5\u5e38\u5e38\u70ba\u61c9\u7528\u7a0b\u5f0f\u4e2d\u7684\u5176\u5b83\u985e\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u5de5\u5177\u6240\u7528\uff0c \u975c\u614b\u8b8a\u91cf<\/p>\n \u975c\u614b\u8b8a\u91cf\u8207\u975c\u614b\u65b9\u6cd5\u985e\u4f3c\u3002\u6240\u6709\u6b64\u985e\u5be6\u4f8b\u5171\u4eab\u6b64\u975c\u614b\u8b8a\u91cf\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728\u985e\u88dd\u8f09\u6642\uff0c\u96bb\u5206\u914d\u4e00\u584a\u5b58\u5132\u7a7a\u9593\uff0c class Value{ \u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n v1.c=0 v2.c=0 \u7531\u6b64\u53ef\u4ee5\u8b49\u660e\u5b83\u5011\u5171\u4eab\u4e00\u584a\u5b58\u5132\u5340\u3002static\u8b8a\u91cf\u6709\u9ede\u985e\u4f3c\u65bcC\u4e2d\u7684\u5168\u5c40\u8b8a\u91cf\u7684\u6982\u5ff5\u3002\u503c\u5f97\u63a2\u8a0e\u7684\u662f\u975c\u614b\u8b8a\u91cf\u7684\u521d\u59cb\u5316\u554f\u984c\u3002\u6211\u5011\u4fee\u6539\u4e0a\u9762\u7684\u7a0b\u5f0f\uff1a<\/p>\n class Value{ public static void main(String[] args){ \u904b\u884c\u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n v1.c=0 v2.c=0 \u9019\u500b\u7a0b\u5f0f\u5c55\u793a\u4e86\u975c\u614b\u521d\u59cb\u5316\u7684\u5404\u7a2e\u7279\u6027\u3002\u5982\u679c\u4f60\u521d\u6b21\u63a5\u89f8Java\uff0c\u7d50\u679c\u53ef\u80fd\u4ee4\u4f60\u5403\u9a5a\u3002\u53ef\u80fd\u6703\u5c0dstatic\u5f8c\u52a0\u5927\u62ec\u865f\u611f\u5230\u56f0\u60d1\u3002 \u975c\u614b\u985e<\/p>\n \u901a\u5e38\u4e00\u500b\u666e\u901a\u985e\u4e0d\u5141\u8a31\u8072\u660e\u70ba\u975c\u614b\u7684\uff0c\u53ea\u6709\u4e00\u500b\u5167\u90e8\u985e\u624d\u53ef\u4ee5\u3002\u9019\u6642\u9019\u500b\u8072\u660e\u70ba\u975c\u614b\u7684\u5167\u90e8\u985e\u53ef\u4ee5\u76f4\u63a5\u4f5c\u70ba\u4e00\u500b\u666e\u901a\u985e\u4f86\u4f7f\u7528\uff0c\u800c\u4e0d\u9700\u5be6\u4f8b\u4e00\u500b\u5916\u90e8\u985e\u3002 public class StaticCls{ \u8f38\u51fa\u7d50\u679c\u6703\u5982\u4f60\u6240\u6599\uff1a<\/p>\n InnerCls<\/p>\n \u548c\u666e\u901a\u985e\u4e00\u6a23\u3002\u5167\u90e8\u985e\u7684\u5176\u5b83\u7528\u6cd5\u8acb\u53c3\u95b1Think in Java\u4e2d\u7684\u76f8\u95dc\u7ae0\u7bc0\uff0c\u6b64\u8655\u4e0d\u4f5c\u8a73\u89e3\u3002<\/p>\n \u4e8c\u3001this & super<\/strong><\/p>\n \u5728\u4e0a\u4e00\u7bc7\u62d9\u4f5c\u4e2d\uff0c\u6211\u5011\u8a0e\u8ad6\u4e86static\u7684\u7a2e\u7a2e\u7528\u6cd5\uff0c\u900f\u904e\u7528static\u4f86\u5b9a\u7fa9\u65b9\u6cd5\u6216\u6210\u54e1\uff0c\u70ba\u6211\u5011\u7a0b\u5f0f\u8a2d\u8a08\u63d0\u4f9b\u4e86\u67d0\u7a2e\u4fbf\u5229\uff0c \u5728Java\u4e2d\uff0cthis \u901a\u5e38\u6307\u76ee\u524d\u5c0d\u8c61\uff0csuper\u5247\u6307\u7236\u985e\u7684\u3002\u7576\u4f60\u60f3\u8981\u5f15\u7528\u76ee\u524d\u5c0d\u8c61\u7684\u67d0\u7a2e\u6771\u897f\uff0c\u6bd4\u5982\u76ee\u524d\u5c0d\u8c61\u7684\u67d0\u500b\u65b9\u6cd5\uff0c\u6216\u76ee\u524d\u5c0d\u8c61\u7684\u67d0\u500b\u6210\u54e1\uff0c \u5728\u4e00\u822c\u65b9\u6cd5\u4e2d<\/p>\n \u6700\u666e\u904d\u7684\u60c5\u6cc1\u5c31\u662f\uff0c\u5728\u4f60\u7684\u65b9\u6cd5\u4e2d\u7684\u67d0\u500b\u5f62\u53c3\u540d\u8207\u76ee\u524d\u5c0d\u8c61\u7684\u67d0\u500b\u6210\u54e1\u6709\u76f8\u540c\u7684\u540d\u5b57\uff0c\u9019\u6642\u70ba\u4e86\u4e0d\u81f3\u65bc\u6df7\u6dc6\uff0c public class DemoThis{ \u9019\u6bb5\u4ee3\u78bc\u5f88\u7c21\u55ae\uff0c\u4e0d\u7528\u89e3\u91cb\u4f60\u4e5f\u61c9\u8a72\u80fd\u770b\u660e\u767d\u3002\u5728\u69cb\u9020\u51fd\u6578\u4e2d\u4f60\u770b\u5230\u7528this.print(),\u4f60\u5b8c\u5168\u53ef\u4ee5\u7528print()\u4f86\u4ee3\u66ff\u5b83\uff0c\u5169\u8005\u6548\u679c\u4e00\u6a23\u3002 class Person{ \u5728DemoSuper\u4e2d\uff0c\u91cd\u65b0\u5b9a\u7fa9\u7684print\u65b9\u6cd5\u8986\u5beb\u4e86\u7236\u985e\u7684print\u65b9\u6cd5\uff0c\u5b83\u9996\u5148\u505a\u4e00\u4e9b\u81ea\u5df1\u7684\u4e8b\u60c5\uff0c\u7136\u5f8c\u8abf\u7528\u7236\u985e\u7684\u90a3\u500b\u88ab\u8986\u5beb\u4e86\u7684\u65b9\u6cd5\u3002 DemoSuper: \u9019\u6a23\u7684\u4f7f\u7528\u65b9\u6cd5\u662f\u6bd4\u8f03\u5e38\u7528\u7684\u3002\u53e6\u5916\u5982\u679c\u7236\u985e\u7684\u6210\u54e1\u53ef\u4ee5\u88ab\u5b50\u985e\u8a2a\u554f\uff0c\u90a3\u4f60\u53ef\u4ee5\u50cf\u4f7f\u7528this\u4e00\u6a23\u4f7f\u7528\u5b83\uff0c\u7528\u201csuper.\u7236\u985e\u4e2d\u7684\u6210\u54e1\u540d\u201d\u7684\u65b9\u5f0f\uff0c \u5728\u69cb\u9020\u51fd\u6578\u4e2d<\/p>\n \u69cb\u9020\u51fd\u6578\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u65b9\u6cd5\uff0c\u5728\u5c0d\u8c61\u521d\u59cb\u5316\u7684\u6642\u5019\u81ea\u52d5\u8abf\u7528\u3002\u5728\u69cb\u9020\u51fd\u6578\u4e2d\uff0cthis\u548csuper\u4e5f\u6709\u4e0a\u9762\u8aaa\u7684\u7a2e\u7a2e\u4f7f\u7528\u65b9\u5f0f\uff0c\u4e26\u4e14\u5b83\u9084\u6709\u7279\u6b8a\u7684\u5730\u65b9\uff0c class Person{ \u5728\u9019\u6bb5\u7a0b\u5f0f\u4e2d\uff0cthis\u548csuper\u4e0d\u518d\u662f\u50cf\u4ee5\u524d\u90a3\u6a23\u7528\u201c.\u201d\u9023\u63a5\u4e00\u500b\u65b9\u6cd5\u6216\u6210\u54e1\uff0c\u800c\u662f\u76f4\u63a5\u5728\u5176\u5f8c\u8ddf\u4e0a\u9069\u7576\u7684\u53c3\u6578\uff0c\u56e0\u6b64\u5b83\u7684\u610f\u7fa9\u4e5f\u5c31\u6709\u4e86\u8b8a\u5316\u3002 \u6700\u5f8c\uff0c\u5beb\u4e86\u9019\u9ebc\u591a\uff0c\u5982\u679c\u4f60\u80fd\u5c0d\u201cthis\u901a\u5e38\u6307\u4ee3\u76ee\u524d\u5c0d\u8c61\uff0csuper\u901a\u5e38\u6307\u4ee3\u7236\u985e\u201d\u9019\u53e5\u8a71\u7262\u8a18\u5728\u5fc3\uff0c\u90a3\u9ebc\u672c\u7bc7\u4fbf\u9054\u5230\u4e86\u76ee\u7684\uff0c \u4e09\u3001final<\/strong><\/p>\n final\u5728Java\u4e2d\u4e26\u4e0d\u5e38\u7528\uff0c\u7136\u800c\u5b83\u537b\u70ba\u6211\u5011\u63d0\u4f9b\u4e86\u8af8\u5982\u5728C\u8a9e\u8a00\u4e2d\u5b9a\u7fa9\u5e38\u91cf\u7684\u529f\u80fd\uff0c\u4e0d\u50c5\u5982\u6b64\uff0cfinal\u9084\u53ef\u4ee5\u8b93\u4f60\u63a7\u5236\u4f60\u7684\u6210\u54e1\u3001 final\u6210\u54e1<\/p>\n \u7576\u4f60\u5728\u985e\u4e2d\u5b9a\u7fa9\u8b8a\u91cf\u6642\uff0c\u5728\u5176\u524d\u9762\u52a0\u4e0afinal\u95dc\u9375\u5b57\uff0c\u90a3\u4fbf\u662f\u8aaa\uff0c\u9019\u500b\u8b8a\u91cf\u4e00\u65e6\u88ab\u521d\u59cb\u5316\u4fbf\u4e0d\u53ef\u6539\u8b8a\uff0c\u9019\u88e1\u4e0d\u53ef\u6539\u8b8a\u7684\u610f\u601d\u5c0d\u57fa\u672c\u985e\u578b\u4f86\u8aaa\u662f\u5176\u503c\u4e0d\u53ef\u8b8a\uff0c import java.util.List; \u6b64\u7a0b\u5f0f\u5f88\u7c21\u55ae\u7684\u6f14\u793a\u4e86final\u7684\u5e38\u898f\u7528\u6cd5\u3002\u5728\u9019\u88e1\u4f7f\u7528\u5728\u69cb\u9020\u51fd\u6578\u4e2d\u9032\u884c\u521d\u59cb\u5316\u7684\u65b9\u6cd5\uff0c\u9019\u4f7f\u4f60\u6709\u4e86\u4e00\u9ede\u9748\u6d3b\u6027\u3002 I=100 List Type:class java.util.LinkedList \u9084\u6709\u4e00\u7a2e\u7528\u6cd5\u662f\u5b9a\u7fa9\u65b9\u6cd5\u4e2d\u7684\u53c3\u6578\u70bafinal\uff0c\u5c0d\u65bc\u57fa\u672c\u985e\u578b\u7684\u8b8a\u91cf\uff0c\u9019\u6a23\u505a\u4e26\u6c92\u6709\u4ec0\u9ebc\u5be6\u969b\u610f\u7fa9\uff0c\u56e0\u70ba\u57fa\u672c\u985e\u578b\u7684\u8b8a\u91cf\u5728\u8abf\u7528\u65b9\u6cd5\u6642\u662f\u50b3\u503c\u7684\uff0c\u4e5f\u5c31\u662f\u8aaa\u4f60\u53ef\u4ee5\u5728\u65b9\u6cd5\u4e2d\u4fee\u6539\u9019\u500b\u53c3\u6578\u8b8a\u91cf\u800c\u4e0d\u6703\u5f71\u97ff\u5230\u8abf\u7528\u8a9e\u53e5\uff0c\u7136\u800c\u5c0d\u65bc\u5c0d\u8c61\u8b8a\u91cf\uff0c\u537b\u986f\u5f97\u5f88\u5be6\u7528\uff0c\u56e0\u70ba\u5c0d\u8c61\u8b8a\u91cf\u5728\u50b3\u905e\u6642\u662f\u50b3\u905e\u5176\u5f15\u7528\uff0c\u9019\u6a23\u4f60\u5728\u65b9\u6cd5\u4e2d\u5c0d\u5c0d\u8c61\u8b8a\u91cf\u7684\u4fee\u6539\u4e5f\u6703\u5f71\u97ff\u5230\u8abf\u7528\u8a9e\u53e5\u4e2d\u7684\u5c0d\u8c61\u8b8a\u91cf\uff0c\u7576\u4f60\u5728\u65b9\u6cd5\u4e2d\u4e0d\u9700\u8981\u6539\u8b8a\u4f5c\u70ba\u53c3\u6578\u7684\u5c0d\u8c61\u8b8a\u91cf\u6642\uff0c\u660e\u78ba\u4f7f\u7528final\u9032\u884c\u8072\u660e\uff0c\u6703\u9632\u6b62\u4f60\u7121\u610f\u7684\u4fee\u6539\u800c\u5f71\u97ff\u5230\u8abf\u7528\u65b9\u6cd5\u3002 public class INClass{ final\u65b9\u6cd5<\/p>\n \u5c07\u65b9\u6cd5\u8072\u660e\u70bafinal\uff0c\u90a3\u5c31\u8aaa\u660e\u4f60\u5df2\u7d93\u77e5\u9053\u9019\u500b\u65b9\u6cd5\u63d0\u4f9b\u7684\u529f\u80fd\u5df2\u7d93\u6eff\u8db3\u4f60\u8981\u6c42\uff0c\u4e0d\u9700\u8981\u9032\u884c\u64f4\u5c55\uff0c\u4e26\u4e14\u4e5f\u4e0d\u5141\u8a31\u4efb\u4f55\u5f9e\u6b64\u985e\u7e7c\u627f\u7684\u985e\u4f86\u8986\u5beb\u9019\u500b\u65b9\u6cd5\uff0c final\u985e<\/p>\n \u7576\u4f60\u5c07final\u7528\u65bc\u985e\u8eab\u4e0a\u6642\uff0c\u4f60\u5c31\u9700\u8981\u4ed4\u7d30\u8003\u616e\uff0c\u56e0\u70ba\u4e00\u500bfinal\u985e\u662f\u7121\u6cd5\u88ab\u4efb\u4f55\u4eba\u7e7c\u627f\u7684\uff0c\u90a3\u4e5f\u5c31\u610f\u5473\u8457\u6b64\u985e\u5728\u4e00\u500b\u7e7c\u627f\u6a39\u4e2d\u662f\u4e00\u500b\u8449\u5b50\u985e\uff0c \u4e0b\u9762\u7684\u7a0b\u5f0f\u6f14\u793a\u4e86final\u65b9\u6cd5\u548cfinal\u985e\u7684\u7528\u6cd5\uff1a<\/p>\n final class final{ \u5f9e\u7a0b\u5f0f\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0cfinal\u985e\u8207\u666e\u901a\u985e\u7684\u4f7f\u7528\u5e7e\u4e4e\u6c92\u6709\u5dee\u5225\uff0c\u96bb\u662f\u5b83\u5931\u53bb\u4e86\u88ab\u7e7c\u627f\u7684\u7279\u6027\u3002final\u65b9\u6cd5\u8207\u975efinal\u65b9\u6cd5\u7684\u5340\u5225\u4e5f\u5f88\u96e3\u5f9e\u7a0b\u5f0f\u884c\u770b\u51fa\uff0c\u96bb\u662f\u8a18\u4f4f\u614e\u7528\u3002<\/p>\n final\u5728\u8a2d\u8a08\u6a21\u5f0f\u4e2d\u7684\u61c9\u7528<\/p>\n \u5728\u8a2d\u8a08\u6a21\u5f0f\u4e2d\u6709\u4e00\u7a2e\u6a21\u5f0f\u53eb\u505a\u4e0d\u8b8a\u6a21\u5f0f\uff0c\u5728Java\u4e2d\u900f\u904efinal\u95dc\u9375\u5b57\u53ef\u4ee5\u5f88\u5bb9\u6613\u7684\u5be6\u73fe\u9019\u500b\u6a21\u5f0f\uff0c\u5728\u8b1b\u89e3final\u6210\u54e1\u6642\u7528\u5230\u7684\u7a0b\u5f0fBat.java\u5c31\u662f\u4e00\u500b\u4e0d\u8b8a\u6a21\u5f0f\u7684\u4f8b\u5b50\u3002 \u5230\u6b64\u70ba\u6b62\uff0cthis,static,supert\u548cfinal\u7684\u4f7f\u7528\u5df2\u7d93\u8aaa\u5b8c\u4e86\uff0c\u5982\u679c\u4f60\u5c0d\u9019\u56db\u500b\u95dc\u9375\u5b57\u5df2\u7d93\u80fd\u5920\u5927\u81f4\u8aaa\u51fa\u5b83\u5011\u7684\u5340\u5225\u8207\u7528\u6cd5\uff0c\u90a3\u4fbf\u8aaa\u660e\u4f60\u57fa\u672c\u5df2\u7d93\u638c\u63e1\u3002 \u672c\u7bc7\u65e8\u5728\u5e6b\u52a9\u6e96\u5099\u5b78\u7fd2Java\u4ee5\u53ca\u525b\u63a5\u89f8Java\u7684\u670b\u53cb\u8a8d\u8b58\u3001\u638c\u63e1\u548c\u4f7f\u7528static\u3001this\u3001super\u3001fin … \u95b1\u8b80\u5168\u6587 Thinking:Java\u4e2dstatic\u3001this\u3001super\u3001final\u7528\u6cd5<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-304","post","type-post","status-publish","format-standard","hentry","category-java","no-featured-image"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/posts\/304","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/comments?post=304"}],"version-history":[{"count":0,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/posts\/304\/revisions"}],"wp:attachment":[{"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/media?parent=304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/categories?post=304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/tags?post=304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\npublic static void main(String[] args){ \/\/(1)
\nSystem.out.println(“Hello,world!”); \/\/(2)
\n}
\n}<\/p>\n
\n\u5373\u4f7f\u6c92\u6709\u5b78\u904eJava\uff0c\u800c\u5b78\u904e\u5176\u5b83\u7684\u9ad8\u7d1a\u8a9e\u8a00\uff0c\u4f8b\u5982C\uff0c\u90a3\u4f60\u4e5f\u61c9\u8a72\u80fd\u770b\u61c2\u9019\u6bb5\u4ee3\u78bc\u7684\u610f\u601d\u3002
\n\u5b83\u96bb\u662f\u7c21\u55ae\u7684\u8f38\u51fa\u201cHello,world\u201d\uff0c\u4e00\u9ede\u5225\u7684\u7528\u8655\u90fd\u6c92\u6709\uff0c\u7136\u800c\uff0c\u5b83\u537b\u5c55\u793a\u4e86static\u95dc\u9375\u5b57\u7684\u4e3b\u8981\u7528\u6cd5\u3002<\/p>\n
\n\u4f60\u9084\u5f97\u4f60\u662f\u600e\u9ebc\u904b\u884c\u9019\u500b\u7a0b\u5f0f\u55ce\uff1f\u4e00\u822c\uff0c\u6211\u5011\u90fd\u662f\u5728\u547d\u4ee4\u884c\u4e0b\uff0c\u6253\u5165\u5982\u4e0b\u7684\u547d\u4ee4(\u52a0\u4e0b\u5283\u7dda\u70ba\u624b\u52d5\u8f38\u5165)\uff1a<\/p>\n
\njava Hello
\nHello,world!<\/p>\n
\n\u90a3\u5c31\u662f\u7b2c\u4e00\u884c\u7522\u751f\u7684Java\u4e8c\u9032\u5236\u4f4d\u5143\u7d44\u78bc\u3002\u7b2c\u4e8c\u884c\u5c31\u662f\u57f7\u884c\u4e00\u500bJava\u7a0b\u5f0f\u7684\u6700\u666e\u904d\u505a\u6cd5\u3002\u57f7\u884c\u7d50\u679c\u5982\u4f60\u6240\u6599\u3002
\n\u57282\u4e2d\uff0c\u4f60\u53ef\u80fd\u6703\u60f3\uff0c\u70ba\u4ec0\u9ebc\u8981\u9019\u6a23\u624d\u80fd\u8f38\u51fa\u3002\u597d\uff0c\u6211\u5011\u4f86\u5206\u89e3\u4e00\u4e0b\u9019\u689d\u8a9e\u53e5\u3002
\n\uff08\u5982\u679c\u6c92\u6709\u88dd\u8a2dJava\u6587\u6a94\uff0c\u8acb\u5230Sun\u7684\u5b98\u65b9\u7db2\u7ad9\u700f\u89bdJ2SE API\uff09
\n\u9996\u5148\uff0cSystem\u662f\u4f4d\u65bcjava.lang\u5305\u4e2d\u7684\u4e00\u500b\u6838\u5fc3\u985e\uff0c\u5982\u679c\u4f60\u67e5\u770b\u5b83\u7684\u5b9a\u7fa9\uff0c
\n\u4f60\u6703\u767c\u73fe\u6709\u9019\u6a23\u4e00\u884c\uff1apublic static final PrintStream out;\u63a5\u8457\u5728\u9032\u4e00\u6b65\uff0c
\n\u9ede\u64caPrintStream\u9019\u500b\u8d85\u93c8\u63a5\uff0c\u5728METHOD\u9801\u9762\uff0c\u4f60\u6703\u770b\u5230\u5927\u91cf\u5b9a\u7fa9\u7684\u65b9\u6cd5\uff0c\u67e5\u627eprintln\uff0c\u6703\u6709\u9019\u6a23\u4e00\u884c\uff1a<\/p>\n
\nstatic void go(){
\nSystem.out.println(“Go…”);
\n}
\n}
\npublic class Cal{
\npublic static void main(String[] args){
\nSimple.go();
\n}
\n}<\/p>\n
\n\u5728Java\u7684\u985e\u5eab\u4e2d\u5927\u91cf\u7684\u975c\u614b\u65b9\u6cd5\u6b63\u662f\u51fa\u65bc\u6b64\u76ee\u7684\u800c\u5b9a\u7fa9\u7684\u3002<\/p>\n
\n\u6240\u6709\u6b64\u985e\u7684\u5c0d\u8c61\u90fd\u53ef\u4ee5\u64cd\u63a7\u6b64\u584a\u5b58\u5132\u7a7a\u9593\uff0c\u7576\u7136\u5c0d\u65bcfinal\u5247\u53e6\u7576\u5225\u8ad6\u4e86\u3002\u770b\u4e0b\u9762\u9019\u6bb5\u4ee3\u78bc\uff1a<\/p>\n
\nstatic int c=0;
\nstatic void inc(){
\nc++;
\n}
\n}
\nclass Count{
\npublic static void prt(String s){
\nSystem.out.println(s);
\n}
\npublic static void main(String[] args){
\nValue v1,v2;
\nv1=new Value();
\nv2=new Value();
\nprt(“v1.c=”+v1.c+” v2.c=”+v2.c);
\nv1.inc();
\nprt(“v1.c=”+v1.c+” v2.c=”+v2.c);
\n}
\n}<\/p>\n
\nv1.c=1 v2.c=1<\/p>\n
\nstatic int c=0;
\nValue(){
\nc=15;
\n}
\nValue(int i){
\nc=i;
\n}
\nstatic void inc(){
\nc++;
\n}
\n}
\nclass Count{
\npublic static void prt(String s){
\nSystem.out.println(s);
\n}
\nValue v=new Value(10);
\nstatic Value v1,v2;
\nstatic{
\nprt(“v1.c=”+v1.c+” v2.c=”+v2.c);
\nv1=new Value(27);
\nprt(“v1.c=”+v1.c+” v2.c=”+v2.c);
\nv2=new Value(15);
\nprt(“v1.c=”+v1.c+” v2.c=”+v2.c);
\n}<\/p>\n
\nCount ct=new Count();
\nprt(“ct.c=”+ct.v.c);
\nprt(“v1.c=”+v1.c+” v2.c=”+v2.c);
\nv1.inc();
\nprt(“v1.c=”+v1.c+” v2.c=”+v2.c);
\nprt(“ct.c=”+ct.v.c);
\n}
\n}<\/p>\n
\nv1.c=27 v2.c=27
\nv1.c=15 v2.c=15
\nct.c=10
\nv1.c=10 v2.c=10
\nv1.c=11 v2.c=11
\nct.c=11<\/p>\n
\n\u9996\u5148\u8981\u544a\u8a34\u4f60\u7684\u662f\uff0c static\u5b9a\u7fa9\u7684\u8b8a\u91cf\u6703\u512a\u5148\u65bc\u4efb\u4f55\u5176\u5b83\u975estatic\u8b8a\u91cf\uff0c\u4e0d\u8ad6\u5176\u51fa\u73fe\u7684\u9806\u5e8f\u5982\u4f55\u3002
\n\u6b63\u5982\u5728\u7a0b\u5f0f\u4e2d\u6240\u8868\u73fe\u7684\uff0c\u96d6\u7136v\u51fa\u73fe\u5728v1\u548cv2\u7684\u524d\u9762\uff0c\u4f46\u662f\u7d50\u679c\u537b\u662f v1\u548cv2\u7684\u521d\u59cb\u5316\u5728v\u7684\u524d\u9762\u3002
\n\u5728static{\u5f8c\u9762\u8ddf\u8457\u4e00\u6bb5\u4ee3\u78bc\uff0c\u9019\u662f\u7528\u4f86\u9032\u884c\u986f\u5f0f\u7684\u975c\u614b\u8b8a\u91cf\u521d\u59cb\u5316\uff0c\u9019\u6bb5\u4ee3\u78bc\u96bb\u6703\u521d\u59cb\u5316\u4e00\u6b21\uff0c\u4e14\u5728\u985e\u88ab\u7b2c\u4e00\u6b21\u88dd\u8f09\u6642\u3002
\n\u5982\u679c\u4f60\u80fd\u8b80\u61c2\u4e26\u7406\u89e3\u9019\u6bb5\u4ee3\u78bc\uff0c\u6703\u5e6b\u52a9\u4f60\u5c0dstatic\u95dc\u9375\u5b57\u7684\u8a8d\u8b58\u3002\u5728\u6d89\u53ca\u5230\u7e7c\u627f\u7684\u6642\u5019\uff0c\u6703\u5148\u521d\u59cb\u5316\u7236\u985e\u7684static\u8b8a\u91cf\uff0c\u7136\u5f8c\u662f\u5b50\u985e\u7684\uff0c\u4f9d\u6b21\u985e\u63a8\u3002
\n\u975e\u975c\u614b\u8b8a\u91cf\u4e0d\u662f\u672c\u6587\u7684\u4e3b\u984c\uff0c\u5728\u6b64\u4e0d\u505a\u8a73\u7d30\u8a0e\u8ad6\uff0c\u8acb\u53c3\u8003Think in Java\u4e2d\u7684\u8b1b\u89e3\u3002<\/p>\n
\n\u5982\u4e0b\u4ee3\u78bc\u6240\u793a\uff1a<\/p>\n
\npublic static void main(String[] args){
\nOuterCls.InnerCls oi=new OuterCls.InnerCls();
\n}
\n}
\nclass OuterCls{
\npublic static class InnerCls{
\nInnerCls(){
\nSystem.out.println(“InnerCls”);
\n}
\n}
\n}<\/p>\n
\n\u5f9e\u67d0\u7a2e\u7a0b\u5ea6\u4e0a\u53ef\u4ee5\u8aaa\u5b83\u985e\u4f3c\u65bc C\u8a9e\u8a00\u4e2d\u7684\u5168\u5c40\u51fd\u6578\u548c\u5168\u5c40\u8b8a\u91cf\u3002\u4f46\u662f\uff0c\u4e26\u4e0d\u662f\u8aaa\u6709\u4e86\u9019\u7a2e\u4fbf\u5229\uff0c\u4f60\u4fbf\u53ef\u4ee5\u96a8\u8655\u4f7f\u7528\uff0c
\n\u5982\u679c\u90a3\u6a23\u7684\u8a71\uff0c\u4f60\u4fbf\u9700\u8981\u8a8d\u771f\u8003\u616e\u4e00\u4e0b\u81ea\u5df1\u662f\u5426\u5728\u7528\u9762\u5411\u5c0d\u8c61\u7684\u601d\u60f3\u7a0b\u5f0f\u8a2d\u8a08\uff0c\u81ea\u5df1\u7684\u7a0b\u5f0f\u662f\u5426\u662f\u9762\u5411\u5c0d\u8c61\u7684\u3002
\n\u597d\u4e86\uff0c\u73fe\u5728\u958b\u59cb\u8a0e\u8ad6this&super\u9019\u5169\u500b\u95dc\u9375\u5b57\u7684\u610f\u7fa9\u548c\u7528\u6cd5\u3002<\/p>\n
\n\u4f60\u4fbf\u53ef\u4ee5\u5229\u7528this\u4f86\u5be6\u73fe\u9019\u500b\u76ee\u7684\uff0c\u7576\u7136\uff0cthis\u7684\u53e6\u4e00\u500b\u7528\u9014\u662f\u8abf\u7528\u76ee\u524d\u5c0d\u8c61\u7684\u53e6\u4e00\u500b\u69cb\u9020\u51fd\u6578\uff0c\u9019\u4e9b\u99ac\u4e0a\u5c31\u8981\u8a0e\u8ad6\u3002
\n\u5982\u679c\u4f60\u60f3\u5f15\u7528\u7236\u985e\u7684\u67d0\u7a2e\u6771\u897f\uff0c\u5247\u975esuper\u83ab\u5c6c\u3002\u7531\u65bcthis \u8207super\u6709\u5982\u6b64\u76f8\u4f3c\u7684\u4e00\u4e9b\u7279\u6027\u548c\u8207\u751f\u4ff1\u4f86\u7684\u67d0\u7a2e\u95dc\u4fc2\uff0c\u6240\u4ee5\u6211\u5011\u5728\u9019\u4e00\u584a\u5152\u4f86\u8a0e\u8ad6\uff0c
\n\u5e0c\u671b\u80fd\u5e6b\u52a9\u4f60\u5340\u5206\u548c\u638c\u63e1\u5b83\u5011\u5169\u500b\u3002<\/p>\n
\n\u4f60\u4fbf\u9700\u8981\u660e\u78ba\u4f7f\u7528this\u95dc\u9375\u5b57\u4f86\u6307\u660e\u4f60\u8981\u4f7f\u7528\u67d0\u500b\u6210\u54e1\uff0c\u4f7f\u7528\u65b9\u6cd5\u662f\u201cthis.\u6210\u54e1\u540d\u201d\uff0c\u800c\u4e0d\u5e36this\u7684\u90a3\u500b\u4fbf\u662f\u5f62\u53c3\u3002
\n\u53e6\u5916\uff0c\u9084\u53ef\u4ee5\u7528\u201cthis.\u65b9\u6cd5\u540d\u201d\u4f86\u5f15\u7528\u76ee\u524d\u5c0d\u8c61\u7684\u67d0\u500b\u65b9\u6cd5\uff0c\u4f46\u9019\u6642this \u5c31\u4e0d\u662f\u5fc5\u9808\u7684\u4e86\uff0c\u4f60\u53ef\u4ee5\u76f4\u63a5\u7528\u65b9\u6cd5\u540d\u4f86\u8a2a\u554f\u90a3\u500b\u65b9\u6cd5\uff0c
\n\u7de8\u8b6f\u5668\u6703\u77e5\u9053\u4f60\u8981\u8abf\u7528\u7684\u662f\u90a3\u4e00\u500b\u3002\u4e0b\u9762\u7684\u4ee3\u78bc\u6f14\u793a\u4e86\u4e0a\u9762\u7684\u7528\u6cd5\uff1a<\/p>\n
\nprivate String name;
\nprivate int age;
\nDemoThis(String name,int age){
\nsetName(name); \/\/\u4f60\u53ef\u4ee5\u52a0\u4e0athis\u4f86\u8abf\u7528\u65b9\u6cd5\uff0c\u50cf\u9019\u6a23\uff1athis.setName(name);\u4f46\u9019\u4e26\u4e0d\u662f\u5fc5\u9808\u7684
\nsetAge(age);
\nthis.print();
\n}
\npublic void setName(String name){
\nthis.name=name;\/\/\u6b64\u8655\u5fc5\u9808\u6307\u660e\u4f60\u8981\u5f15\u7528\u6210\u54e1\u8b8a\u91cf
\n}
\npublic void setAge(int age){
\nthis.age=age;
\n}
\npublic void print(){
\nSystem.out.println(“Name=”+name+” Age=”+age);\/\/\u5728\u6b64\u884c\u4e2d\u4e26\u4e0d\u9700\u8981\u7528this\uff0c\u56e0\u70ba\u6c92\u6709\u6703\u5c0e\u81f4\u6df7\u6dc6\u7684\u6771\u897f
\n}
\npublic static void main(String[] args){
\nDemoThis dt=new DemoThis(“Kevin”,”22″);
\n}
\n}<\/p>\n
\n\u4e0b\u9762\u6211\u5011\u4fee\u6539\u9019\u500b\u7a0b\u5f0f\uff0c\u4f86\u6f14\u793asuper\u7684\u7528\u6cd5\u3002<\/p>\n
\npublic int c;
\nprivate String name;
\nprivate int age;
\nprotected void setName(String name){
\nthis.name=name;
\n}
\nprotected void setAge(int age){
\nthis.age=age;
\n}
\nprotected void print(){
\nSystem.out.println(“Name=”+name+” Age=”+age);
\n}
\n}
\npublic class DemoSuper extends Person{
\npublic void print(){
\nSystem.out.println(“DemoSuper:”);
\nsuper.print();
\n}
\npublic static void main(String[] args){
\nDemoSuper ds=new DemoSuper();
\nds.setName(“kevin”);
\nds.setAge(22);
\nds.print();
\n}
\n}<\/p>\n
\n\u8f38\u51fa\u7d50\u679c\u8aaa\u660e\u4e86\u9019\u4e00\u9ede\uff1a<\/p>\n
\nName=kevin Age=22<\/p>\n
\n\u4f46\u5e38\u5e38\u4f60\u4e26\u4e0d\u662f\u9019\u6a23\u4f86\u8a2a\u554f\u7236\u985e\u4e2d\u7684\u6210\u54e1\u540d\u7684\u3002<\/p>\n
\n\u8acb\u770b\u4e0b\u9762\u7684\u4f8b\u5b50\uff1a<\/p>\n
\npublic static void prt(String s){
\nSystem.out.println(s);
\n}
\nPerson(){
\nprt(“A Person.”);
\n}
\nPerson(String name){
\nprt(“A person name is:”+name);
\n}
\n}
\npublic class Chinese extends Person{
\nChinese(){
\nsuper(); \/\/\u8abf\u7528\u7236\u985e\u69cb\u9020\u51fd\u6578\uff081\uff09
\nprt(“A chinese.”);\/\/(4)
\n}
\nChinese(String name){
\nsuper(name);\/\/\u8abf\u7528\u7236\u985e\u5177\u6709\u76f8\u540c\u5f62\u53c3\u7684\u69cb\u9020\u51fd\u6578\uff082\uff09
\nprt(“his name is:”+name);
\n}
\nChinese(String name,int age){
\nthis(name);\/\/\u8abf\u7528\u76ee\u524d\u5177\u6709\u76f8\u540c\u5f62\u53c3\u7684\u69cb\u9020\u51fd\u6578\uff083\uff09
\nprt(“his age is:”+age);
\n}
\npublic static void main(String[] args){
\nChinese cn=new Chinese();
\ncn=new Chinese(“kevin”);
\ncn=new Chinese(“kevin”,22);
\n}
\n}<\/p>\n
\nsuper\u5f8c\u52a0\u53c3\u6578\u7684\u662f\u7528\u4f86\u8abf\u7528\u7236\u985e\u4e2d\u5177\u6709\u76f8\u540c\u5f62\u5f0f\u7684\u69cb\u9020\u51fd\u6578\uff0c\u59821\u548c2\u8655\u3002
\nthis\u5f8c\u52a0\u53c3\u6578\u5247\u8abf\u7528\u7684\u662f\u76ee\u524d\u5177\u6709\u76f8\u540c\u53c3\u6578\u7684\u69cb\u9020\u51fd\u6578\uff0c\u59823\u8655\u3002
\n\u7576\u7136\uff0c\u5728 Chinese\u7684\u5404\u500b\u91cd\u8f09\u69cb\u9020\u51fd\u6578\u4e2d\uff0cthis\u548csuper\u5728\u4e00\u822c\u65b9\u6cd5\u4e2d\u7684\u5404\u7a2e\u7528\u6cd5\u4e5f\u4ecd\u53ef\u4f7f\u7528\uff0c
\n\u6bd4\u59824\u8655\uff0c\u4f60\u53ef\u4ee5\u5c07\u5b83\u66ff\u63db\u70ba\u201cthis.prt\u201d(\u56e0\u70ba\u5b83\u7e7c\u627f\u4e86\u7236\u985e\u4e2d\u7684\u90a3\u500b\u65b9\u6cd5\uff09\u6216\u8005\u662f\u201csuper.prt\u201d\uff08\u56e0\u70ba\u5b83\u662f\u7236\u985e\u4e2d\u7684\u65b9\u6cd5\u4e14\u53ef\u88ab\u5b50\u985e\u8a2a\u554f\uff09\uff0c
\n\u5b83\u7167\u6a23\u53ef\u4ee5\u6b63\u78ba\u904b\u884c\u3002\u4f46\u9019\u6a23\u4f3c\u4e4e\u5c31\u6709\u9ede\u756b\u86c7\u6dfb\u8db3\u7684\u5473\u9053\u4e86\u3002<\/p>\n
\n\u5176\u5b83\u7684\u4f60\u81ea\u6703\u5728\u4ee5\u5f8c\u7684\u7a0b\u5f0f\u8a2d\u8a08\u5be6\u8e10\u7576\u4e2d\u6162\u6162\u9ad4\u6703\u3001\u638c\u63e1\u3002\u53e6\u5916\u95dc\u65bc\u672c\u7bc7\u4e2d\u63d0\u5230\u7684\u7e7c\u627f\uff0c\u8acb\u53c3\u95b1\u76f8\u95dcJava\u6559\u7a0b\u3002<\/p>\n
\n\u65b9\u6cd5\u6216\u8005\u662f\u4e00\u500b\u985e\u662f\u5426\u53ef\u88ab\u8986\u5beb\u6216\u7e7c\u627f\u7b49\u529f\u80fd\uff0c\u9019\u4e9b\u7279\u9ede\u4f7ffinal\u5728Java\u4e2d\u64c1\u6709\u4e86\u4e00\u500b\u4e0d\u53ef\u6216\u7f3a\u7684\u5730\u4f4d\uff0c\u4e5f\u662f\u5b78\u7fd2Java\u6642\u5fc5\u9808\u8981\u77e5\u9053\u548c\u638c\u63e1\u7684\u95dc\u9375\u5b57\u4e4b\u4e00\u3002<\/p>\n
\n\u800c\u5c0d\u65bc\u5c0d\u8c61\u8b8a\u91cf\u4f86\u8aaa\u5176\u5f15\u7528\u4e0d\u53ef\u518d\u8b8a\u3002\u5176\u521d\u59cb\u5316\u53ef\u4ee5\u5728\u5169\u500b\u5730\u65b9\uff0c
\n\u4e00\u662f\u5176\u5b9a\u7fa9\u8655\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728final\u8b8a\u91cf\u5b9a\u7fa9\u6642\u76f4\u63a5\u7d66\u5176\u8ce6\u503c\uff0c\u4e8c\u662f\u5728\u69cb\u9020\u51fd\u6578\u4e2d\u3002
\n\u9019\u5169\u500b\u5730\u65b9\u96bb\u80fd\u9078\u5176\u4e00\uff0c\u8981\u9ebc\u5728\u5b9a\u7fa9\u6642\u7d66\u503c\uff0c\u8981\u9ebc\u5728\u69cb\u9020\u51fd\u6578\u4e2d\u7d66\u503c\uff0c\u4e0d\u80fd\u540c\u6642\u65e2\u5728\u5b9a\u7fa9\u6642\u7d66\u4e86\u503c\uff0c\u53c8\u5728\u69cb\u9020\u51fd\u6578\u4e2d\u7d66\u53e6\u5916\u7684\u503c\u3002
\n\u4e0b\u9762\u9019\u6bb5\u4ee3\u78bc\u6f14\u793a\u4e86\u9019\u4e00\u9ede\uff1a<\/p>\n
\nimport java.util.ArrayList;
\nimport java.util.LinkedList;
\npublic class Bat{
\nfinal PI=3.14; \/\/\u5728\u5b9a\u7fa9\u6642\u4fbf\u7d66\u5740\u503c
\nfinal int i; \/\/\u56e0\u70ba\u8981\u5728\u69cb\u9020\u51fd\u6578\u4e2d\u9032\u884c\u521d\u59cb\u5316\uff0c\u6240\u4ee5\u6b64\u8655\u4fbf\u4e0d\u53ef\u518d\u7d66\u503c
\nfinal List list; \/\/\u6b64\u8b8a\u91cf\u4e5f\u8207\u4e0a\u9762\u7684\u4e00\u6a23
\nBat(){
\ni=100;
\nlist=new LinkedList();
\n}
\nBat(int ii,List l){
\ni=ii;
\nlist=l;
\n}
\npublic static void main(String[] args){
\nBat b=new Bat();
\nb.list.add(new Bat());
\n\/\/b.i=25;
\n\/\/b.list=new ArrayList();
\nSystem.out.println(“I=”+b.i+” List Type:”+b.list.getClass());
\nb=new Bat(23,new ArrayList());
\nb.list.add(new Bat());
\nSystem.out.println(“I=”+b.i+” List Type:”+b.list.getClass());
\n}
\n}<\/p>\n
\n\u5982Bat\u7684\u5169\u500b\u91cd\u8f09\u69cb\u9020\u51fd\u6578\u6240\u793a\uff0c\u7b2c\u4e00\u500b\u7f3a\u7701\u69cb\u9020\u51fd\u6578\u6703\u70ba\u4f60\u63d0\u4f9b\u9ed8\u8a8d\u7684\u503c\uff0c\u91cd\u8f09\u7684\u90a3\u500b\u69cb\u9020\u51fd\u6578\u6703\u6839\u64da\u4f60\u6240\u63d0\u4f9b\u7684\u503c\u6216\u985e\u578b\u70bafinal\u8b8a\u91cf\u521d\u59cb\u5316\u3002
\n\u7136\u800c\u6709\u6642\u4f60\u4e26\u4e0d\u9700\u8981\u9019\u7a2e\u9748\u6d3b\u6027\uff0c\u4f60\u96bb\u9700\u8981\u5728\u5b9a\u7fa9\u6642\u4fbf\u7d66\u5b9a\u5176\u503c\u4e26\u6c38\u4e0d\u8b8a\u5316\uff0c\u9019\u6642\u5c31\u4e0d\u8981\u518d\u7528\u9019\u7a2e\u65b9\u6cd5\u3002
\n\u5728main\u65b9\u6cd5\u4e2d\u6709\u5169\u884c\u8a9e\u53e5\u6ce8\u91cb\u6389\u4e86\uff0c\u5982\u679c\u4f60\u53bb\u6389\u6ce8\u91cb\uff0c\u7a0b\u5f0f\u4fbf\u7121\u6cd5\u900f\u904e\u7de8\u8b6f\uff0c\u9019\u4fbf\u662f\u8aaa\uff0c\u4e0d\u8ad6\u662fi\u7684\u503c\u6216\u662f list\u7684\u985e\u578b\uff0c\u4e00\u65e6\u521d\u59cb\u5316\uff0c\u78ba\u5be6\u7121\u6cd5\u518d\u4fee\u6539\u3002
\n\u7136\u800cb\u53ef\u4ee5\u900f\u904e\u91cd\u65b0\u521d\u59cb\u5316\u4f86\u6307\u5b9ai\u7684\u503c\u6216list\u7684\u985e\u578b\uff0c\u8f38\u51fa\u7d50\u679c\u4e2d\u986f\u793a\u4e86\u9019\u4e00\u9ede\uff1a<\/p>\n
\nI=23 List Type:class java.util.ArrayList<\/p>\n
\n\u53e6\u5916\u65b9\u6cd5\u4e2d\u7684\u5167\u90e8\u985e\u5728\u7528\u5230\u65b9\u6cd5\u4e2d\u7684\u53c3\u8b8a\u91cf\u6642\uff0c\u6b64\u53c3\u8b8a\u4e5f\u5fc5\u9808\u8072\u660e\u70bafinal\u624d\u53ef\u4f7f\u7528\uff0c\u5982\u4e0b\u4ee3\u78bc\u6240\u793a\uff1a<\/p>\n
\nvoid innerClass(final String str){
\nclass IClass{
\nIClass(){
\nSystem.out.println(str);
\n}
\n}
\nIClass ic=new IClass();
\n}
\npublic static void main(String[] args){
\nINClass inc=new INClass();
\ninc.innerClass(“Hello”);
\n}
\n}<\/p>\n
\n\u4f46\u662f\u7e7c\u627f\u4ecd\u7136\u53ef\u4ee5\u7e7c\u627f\u9019\u500b\u65b9\u6cd5\uff0c\u4e5f\u5c31\u662f\u8aaa\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u3002\u53e6\u5916\u6709\u4e00\u7a2e\u88ab\u7a31\u70bainline\u7684\u6a5f\u5236\uff0c\u5b83\u6703\u4f7f\u4f60\u5728\u8abf\u7528final\u65b9\u6cd5\u6642\uff0c\u76f4\u63a5\u5c07\u65b9\u6cd5\u4e3b\u9ad4\u63d2\u5165\u5230\u8abf\u7528\u8655\uff0c
\n\u800c\u4e0d\u662f\u9032\u884c\u4f8b\u884c\u7684\u65b9\u6cd5\u8abf\u7528\uff0c\u4f8b\u5982\u4fdd\u5b58\u65b7\u9ede\uff0c\u58d3\u68e7\u7b49\uff0c\u9019\u6a23\u53ef\u80fd\u6703\u4f7f\u4f60\u7684\u7a0b\u5f0f\u6548\u7387\u6709\u6240\u63d0\u9ad8\uff0c\u7136\u800c\u7576\u4f60\u7684\u65b9\u6cd5\u4e3b\u9ad4\u975e\u5e38\u9f90\u5927\u6642\uff0c\u6216\u4f60\u5728\u591a\u8655\u8abf\u7528\u6b64\u65b9\u6cd5\uff0c
\n\u90a3\u9ebc\u4f60\u7684\u8abf\u7528\u4e3b\u9ad4\u4ee3\u78bc\u4fbf\u6703\u8fc5\u901f\u81a8\u8139\uff0c\u53ef\u80fd\u53cd\u800c\u6703\u5f71\u97ff\u6548\u7387\uff0c\u6240\u4ee5\u4f60\u8981\u614e\u7528final\u9032\u884c\u65b9\u6cd5\u5b9a\u7fa9\u3002<\/p>\n
\n\u4e26\u4e14\u6b64\u985e\u7684\u8a2d\u8a08\u5df2\u88ab\u8a8d\u70ba\u5f88\u5b8c\u7f8e\u800c\u4e0d\u9700\u8981\u9032\u884c\u4fee\u6539\u6216\u64f4\u5c55\u3002\u5c0d\u65bcfinal\u985e\u4e2d\u7684\u6210\u54e1\uff0c\u4f60\u53ef\u4ee5\u5b9a\u7fa9\u5176\u70bafinal\uff0c\u4e5f\u53ef\u4ee5\u4e0d\u662ffinal\u3002
\n\u800c\u5c0d\u65bc\u65b9\u6cd5\uff0c\u7531\u65bc\u6240\u5c6c\u985e\u70ba final\u7684\u95dc\u4fc2\uff0c\u81ea\u7136\u4e5f\u5c31\u6210\u4e86final\u578b\u7684\u3002\u4f60\u4e5f\u53ef\u4ee5\u660e\u78ba\u7684\u7d66final\u985e\u4e2d\u7684\u65b9\u6cd5\u52a0\u4e0a\u4e00\u500bfinal\uff0c\u4f46\u9019\u986f\u7136\u6c92\u6709\u610f\u7fa9\u3002<\/p>\n
\nfinal String str=”final Data”;
\npublic String str1=”non final data”;
\nfinal public void print(){
\nSystem.out.println(“final method.”);
\n}
\npublic void what(){
\nSystem.out.println(str+”\\n”+str1);
\n}
\n}
\npublic class FinalDemo { \/\/extends final \u7121\u6cd5\u7e7c\u627f
\npublic static void main(String[] args){
\nfinal f=new final();
\nf.what();
\nf.print();
\n}
\n}<\/p>\n
\n\u5982\u679c\u4f60\u5c0d\u6b64\u611f\u8208\u8da3\uff0c\u53ef\u4ee5\u53c3\u8003\u95bb\u5b8f\u535a\u58eb\u7de8\u5beb\u7684\u300aJava\u8207\u6a21\u5f0f\u300b\u4e00\u66f8\u4e2d\u7684\u8b1b\u89e3\u3002<\/p>\n
\n\u7136\u800c\uff0c\u4e16\u754c\u4e0a\u7684\u4efb\u4f55\u6771\u897f\u90fd\u4e0d\u662f\u5b8c\u7f8e\u7121\u7f3a\u7684\uff0cJava\u63d0\u4f9b\u9019\u56db\u500b\u95dc\u9375\u5b57\uff0c\u7d66\u7a0b\u5f0f\u54e1\u7684\u7a0b\u5f0f\u8a2d\u8a08\u5e36\u4f86\u4e86\u5f88\u5927\u7684\u4fbf\u5229\uff0c\u4f46\u4e26\u4e0d\u662f\u8aaa\u8981\u8b93\u4f60\u5230\u8655\u4f7f\u7528\uff0c
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