{"id":14,"date":"2008-05-28T15:54:12","date_gmt":"2008-05-28T07:54:12","guid":{"rendered":"http:\/\/www.killtest.com.tw\/?p=10"},"modified":"2008-05-28T15:54:12","modified_gmt":"2008-05-28T07:54:12","slug":"scjp","status":"publish","type":"post","link":"https:\/\/www.killtest.com.tw\/?p=14","title":{"rendered":"SCJP"},"content":{"rendered":"

SUN SCJP<\/strong>\u53c8\u7a31SUN JAVA2\u8a8d\u8b49\u7a0b\u5e8f\u54e1\u8003\u8a66<\/p>\n

\u5305\u62ec\u8003\u8a66\u70ba\uff1a310-055 Exam<\/strong>\uff1aSun Certified Programmer for the Java 2 Platform.SE 5.0<\/p>\n

\u8a73\u7d30\u4ecb\u7d39\u3001\u8003\u8a66\u5167\u5bb9\u91cd\u9ede\u4ecb\u7d39\uff1a<\/p>\n

\u7b2c\u4e00\u90e8\u5206\uff1a\u8072\u660e\u548c\u8a2a\u554f\u63a7\u5236<\/strong><\/p>\n

\u8072\u660e\uff0c\u69cb\u5efa\uff0c\u521d\u59cb\u5316\u4efb\u4f55\u985e\u578b\u7684\u6578\u7d44
\n\u8072\u660e\u985e\uff0c\u5167\u90e8\u985e\uff0c\u65b9\u6cd5\uff0c\u6210\u54e1\u8b8a\u91cf\uff0c\u975c\u614b\u6210\u54e1\u8b8a\u91cf\u548c\u65b9\u6cd5\u8b8a\u91cf\uff0c\u4e26\u6703\u61c9\u7528\u4efb\u4f55\u5408\u6cd5\u7684\u4fee\u98fe\u7b26\uff08\u5982public,final,static,abstract,\u7b49\u7b49\uff09\u3002\u80fd\u5920\u660e\u4e86\u9019\u4e9b\u4fee\u98fe\u7b26\u55ae\u7368\u548c\u7d44\u5408\u8d77\u4f86\u7684\u542b\u7fa9\uff0c\u4e26\u4e14\u77e5\u9053\u88ab\u4fee\u98fe\u7b26\u4fee\u98fe\u7684\u4efb\u610f\u5c0d\u8c61\u5728\u5404\u7a2e\u5305\u76f8\u95dc\u806f\u7cfb\u4e0b
\n\u7684\u5f71\u97ff\u3002<\/p>\n

\u7b2c\u4e8c\u90e8\u5206\uff1a\u6d41\u7a0b\u63a7\u5236\uff0c\u65b7\u8a00\u548c\u7570\u5e38\u8655\u7406<\/strong><\/p>\n

\u80fd\u5920\u6b63\u78ba\u4f7f\u7528if,switch\u8a9e\u53e5\u4e26\u4e14\u5728\u9019\u4e9b\u8a9e\u53e5\u4e2d\u80fd\u6b63\u78ba\u4f7f\u7528\u5408\u6cd5\u7684\u53c3\u6578\u985e\u578b\u3002
\n\u80fd\u5920\u6b63\u78ba\u4f7f\u7528\u6240\u6709\u5e36\u6a19\u7c3d\u6216\u4e0d\u5e36\u6a19\u7c3d\u7684\u5faa\u74b0\u8a9e\u53e5\uff0c\u80fd\u4f7f\u7528break,continue\uff0c\u80fd\u8a08\u7b97\u5728\u5faa\u74b0\u4e2d\u6216\u5faa\u74b0\u5f8c\u5faa\u74b0\u8a08\u6578\u5668\u7684\u503c\u3002
\n\u80fd\u5920\u6b63\u78ba\u4f7f\u7528\u7570\u5e38\u548c\u7570\u5e38\u8655\u7406\u8a9e\u53e5\uff08try,catch,finally\uff09\u3002\u80fd\u6b63\u78ba\u8072\u660e\u64f2\u51fa\u4f8b\u5916\u7684\u65b9\u6cd5\uff0c\u4e26\u77e5\u9053\u600e\u6a23\u8986\u84cb\u5b83\u3002
\n\u77e5\u9053\u5728\u7a0b\u5e8f\u6bb5\u7684\u7279\u5b9a\u9ede\u51fa\u73fe\u7684\u7570\u5e38\u5c0d\u7a0b\u5e8f\u7684\u5f71\u97ff\u3002\u5373\uff1a\u7570\u5e38\u53ef\u80fd\u662f\u4e00\u500bruntime exception,\u4e00\u500bchecked exception\u4e5f\u53ef\u80fd\u662f\u4e00\u500berror\u3002\uff08\u9019\u500b\u7a0b\u5e8f\u6bb5\u53ef\u80fd\u5305\u62ectry,catch,finally\u4e26\u4ee5\u4efb\u4f55\u53ef\u80fd\u7684\u5408\u6cd5\u7d44\u5408\u51fa\u73fe\u3002\uff09\u3002<\/p>\n

\u80fd\u6b63\u78ba\u61c9\u7528\u65b7\u8a00\uff0c\u5340\u5206\u6b63\u78ba\u4f7f\u7528\u7684\u65b7\u8a00\u548c\u4e0d\u6b63\u78ba\u7684\u3002\u660e\u767d\u95dc\u65bc\u65b7\u8a00\u6a5f\u5236\u7684\u6b63\u78ba\u8aaa\u6cd5\u3002<\/p>\n

\u7b2c\u4e09\u90e8\u5206\uff1a\u5783\u573e\u6536\u96c6<\/strong><\/p>\n

\u660e\u767d\u5783\u573e\u6536\u96c6\u6a5f\u5236\u78ba\u5b9a\u6027\u7684\u884c\u70ba\u3002
\n\u80fd\u7528\u7a0b\u5e8f\u986f\u5f0f\u7684\u4f7f\u4e00\u500b\u5c0d\u8c61\u80fd\u88ab\u5783\u573e\u6536\u96c6\u5668\u5408\u6cd5\u7684\u6536\u96c6\u3002
\n\u77e5\u9053\u5728\u7a0b\u5e8f\u7684\u54ea\u4e00\u9ede\u5783\u573e\u6536\u96c6\u5668\u80fd\u5408\u6cd5\u5730\u6536\u96c6\u4e00\u500b\u5c0d\u8c61\u3002<\/p>\n

\u7b2c\u56db\u90e8\u5206\uff1a\u8a9e\u8a00\u57fa\u790e<\/strong><\/p>\n

\u80fd\u6b63\u78ba\u69cb\u5efa\u5305\u8072\u660e\uff0cimport\u8072\u660e\uff0c\u985e\u8072\u660e\uff08\u5305\u62ec\u5167\u90e8\u985e\uff09\uff0c\u63a5\u53e3\u8072\u660e\uff0c\u65b9\u6cd5\u8072\u660e\uff08\u5305\u62ec\u7528\u65bc\u958b\u59cb\u4e00\u500b\u985e\u7684\u57f7\u884c\u7684main\u65b9\u6cd5\uff09\uff0c\u8b8a\u91cf\u8072\u660e\u53ca\u5176\u5176\u5b83\u7684\u4e00\u4e9b\u8aaa\u660e\u7b26\u3002
\n\u80fd\u5920\u6b63\u78ba\u4f7f\u7528\u4e00\u4e9b\u985e\uff0c\u9019\u4e9b\u985e\u8981\u9ebd\u5be6\u73fe\u4e86java.lang.Runnable\u9019\u500b\u63a5\u53e3\uff0c\u8981\u9ebd\u80fd\u6b63\u78ba\u5be6\u73fe\u5728\u554f\u984c\u4e2d\u69cb\u5efa\u7684\u4e00\u4e9b\u63a5\u53e3\u3002
\n\u77e5\u9053\u50b3\u5165main\u51fd\u6578\u7684\u547d\u4ee4\u884c\u53c3\u6578\u7684index value\u3002
\n\u77e5\u9053\u6240\u6709JAVA\u7684keyword\u3002\u8a3b\u610f\uff1a\u8003\u8a66\u4e2d\u4e0d\u6703\u51fa\u73fe\u8981\u4f60\u5340\u5206keyword\u548c\u5404\u7a2e\u5e38\u6578\u9019\u985e\u6df1\u5967\u7684\u554f\u984c\u3002
\n\u660e\u767d\u5982\u679c\u6c92\u6709\u986f\u5f0f\u5730\u8ce6\u503c\u7684\u5404\u7a2e\u8b8a\u91cf\u6216\u8005\u6578\u7d44\u88ab\u4f7f\u7528\u6703\u51fa\u73fe\u4ec0\u9ebd\u7d50\u679c\u3002
\n\u77e5\u9053\u6240\u6709\u539f\u59cb\u6578\u64da\u985e\u578b\u7684\u53d6\u503c\u7bc4\u570d\uff0c\u600e\u6a23\u8072\u660e\u4e00\u500bString\u7684\u5b57\u9762\u503c\u7b49\u7b49\u3002<\/p>\n

\u7b2c\u4e94\u90e8\u5206\uff1a\u64cd\u4f5c\u8207\u8ce6\u503c<\/strong><\/p>\n

\u80fd\u77e5\u9053\u7576\u4efb\u4f55\u64cd\u4f5c\u7b26\uff08\u5305\u62ec\u8ce6\u503c\u64cd\u4f5c\u7b26\u548cintanceof\u64cd\u4f5c\u7b26\uff09\u61c9\u7528\u65bc\u4efb\u4f55\u64cd\u4f5c\u6578\uff08\u4efb\u4f55\u985e\u578b\u7684\u985e\u6216\u8a2a\u554f\u80fd\u529b\u6216\u5169\u8005\u7684\u4efb\u610f\u7d44\u5408\uff09\u7684\u7d50\u679c\u3002
\n\u77e5\u9053String\uff0cBoolean\u548cObject\u985e\u4f7f\u7528equals(Object)\u65b9\u6cd5\u5f8c\u7684\u7d50\u679c\u3002
\n\u77e5\u9053\u7576\u5c0d\u5df2\u7d93\u77e5\u9053\u503c\u7684\u8b8a\u91cf\u9032\u884c&,|,&&,||\u64cd\u4f5c\u6642\uff0c\u54ea\u4e9b\u64cd\u4f5c\u6578\u88ab\u904b\u7b97\u4e86\uff0c\u8868\u9054\u5f0f\u6700\u7d42\u7684\u7d50\u679c\u662f\u600e\u6a23\u7684\u3002
\n\u77e5\u9053Object\u548c\u539f\u59cb\u985e\u578b\u6578\u64da\u50b3\u5165\u65b9\u6cd5\u7684\u4e0d\u540c\u65b9\u5f0f\uff0c\u77e5\u9053\u5982\u4f55\u5728\u9019\u4e9b\u65b9\u6cd5\u4e2d\u5982\u4f55\u9032\u884c\u8ce6\u503c\u6216\u5176\u5b83\u4fee\u6539\u64cd\u4f5c\u3002
\n\u7b2c\u516d\u90e8\u5206\uff1a\u8986\u84cb\uff0c\u91cd\u8f09\uff0c\u904b\u884c\u6642\u671f\u985e\u578b\u53ca\u5176\u9762\u5411\u5c0d\u8c61<\/p>\n

\u77e5\u9053\u9762\u5411\u5c0d\u8c61\u8a2d\u8a08\u4e2d\u5c01\u88dd\u7684\u597d\u8655\u4e26\u80fd\u7528\u7a0b\u5e8f\u5be6\u73fe\u7dca\u5bc6\u5c01\u88dd\u7684\u985e\uff0c\u80fd\u77e5\u9053is a\u548chas a\u7684\u610f\u7fa9\u3002<\/p>\n

\u80fd\u6b63\u78ba\u4f7f\u7528\u8986\u84cb\u548c\u91cd\u8f09\u7684\u65b9\u6cd5\uff0c\u80fd\u6b63\u78ba\u8abf\u7528\u7236\u985e\u6216\u8986\u84cb\u4e86\u7684\u69cb\u5efa\u5668\uff0c\u77e5\u9053\u8abf\u7528\u9019\u4e9b\u65b9\u6cd5\u5f8c\u7684\u7d50\u679c\u3002
\n\u80fd\u5be6\u4f8b\u5316\u4efb\u4f55\u5177\u9ad4\u7684\u4e00\u822c\u9802\u5c64\u985e\u548c\u5167\u90e8\u985e\u3002<\/p>\n

\u7b2c\u4e03\u90e8\u5206\uff1a\u7dda\u7a0b<\/strong><\/p>\n

\u80fd\u7528java.lang,Thread\u548cjava.lang.Runnable\u5169\u7a2e\u65b9\u6cd5\u5b9a\u7fa9\uff0c\u5be6\u4f8b\u5316\u548c\u958b\u59cb\u4e00\u500b\u65b0\u7684\u7dda\u7a0b\u3002<\/p>\n

\u77e5\u9053\u54ea\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u963b\u6b62\u4e00\u500b\u7dda\u7a0b\u7684\u57f7\u884c\u3002<\/p>\n

\u80fd\u4f7f\u7528synchronized,wait,notify\u548cnotifyAll\u53bb\u89e3\u6c7a\u907f\u514d\u540c\u6642\u8a2a\u554f\u53ca\u5176\u7dda\u7a0b\u9593\u76f8\u4e92\u901a\u8a0a\u7684\u554f\u984c\u3002<\/p>\n

\u7576\u57f7\u884csynchronized,wait,notify\u548cnotifyAll\u6642\uff0c\u77e5\u9053\u7dda\u7a0b\u548c\u5c0d\u8c61\u9396\u4e4b\u9593\u7684\u4ea4\u4e92\u4f5c\u7528\u3002
\n\u7b2c\u516b\u90e8\u5206\uff1a\u5728java.lang\u5305\u4e2d\u7684\u57fa\u790e\u985e<\/p>\n

\u80fd\u5920\u61c9\u7528Math\u985e\u4e2d\u7684abs,ceil,floor,max,min,random,round,sin,cos,tan,sqrt\u65b9\u6cd5\u3002
\n\u6b63\u78ba\u63cf\u8ff0String\u985e\u4e0d\u53ef\u6539\u8b8a\u7684\u610f\u7fa9\u3002
\n\u7576\u57f7\u884c\u4e00\u6bb5\u7a0b\u5e8f\uff0c\u4e2d\u9593\u5305\u542b\u6709wrapper\u985e\u7684\u4e00\u500b\u5be6\u4f8b\uff0c\u77e5\u9053\u5b83\u904b\u884c\u7684\u524d\u63d0\u689d\u4ef6\u904b\u884c\u7d50\u679c\u3002\u80fd\u7528\u4e0b\u9762wrapper\u985e\uff08\u4f8b\u5982Integer,Double,\u7b49\u7b49\uff09\u7684\u65b9\u6cd5\u4f86\u5beb\u7a0b\u5e8f\uff1a
\ndoublevalue
\nfloatvalue
\nintvalue
\nlongvalue
\nparseXxx
\ngetXxx
\ntoString
\ntoHexString<\/p>\n

\u7b2c\u4e5d\u90e8\u5206\uff1a\u96c6\u5408\u985e\u6846\u67b6<\/strong><\/p>\n

\u77e5\u9053\u5982\u4f55\u5728\u7279\u5b9a\u7684\u689d\u4ef6\u4e0b\u9078\u64c7\u9069\u5408\u7684\u96c6\u5408\u985e\/\u63a5\u53e3\u3002
\n\u5340\u5206\u6b63\u78ba\u548c\u4e0d\u6b63\u78ba\u5c0dhashcode\u65b9\u6cd5\u7684\u5be6\u73fe\u3002<\/p>\n

\u5c0dSCJP\u8003\u8a66\u7591\u554f\u53ef\u4ee5\u806f\u7e6b KillTest \u5728\u7dda\u5ba2\u670d\u9032\u884c\u4e86\u89e3 \"\"<\/a> \uff08\u70b9\u51fb\u8054\u7cfb\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"

SUN SCJP\u53c8\u7a31SUN JAVA2\u8a8d\u8b49\u7a0b\u5e8f\u54e1\u8003\u8a66 \u5305\u62ec\u8003\u8a66\u70ba\uff1a310-055 Exam\uff1aSun Certified Programmer for the Java 2 Platform.SE 5.0 \u8a73\u7d30\u4ecb\u7d39\u3001\u8003\u8a66\u5167\u5bb9\u91cd\u9ede\u4ecb\u7d39\uff1a \u7b2c\u4e00\u90e8\u5206\uff1a\u8072\u660e\u548c\u8a2a\u554f\u63a7\u5236 \u8072\u660e\uff0c\u69cb\u5efa\uff0c\u521d\u59cb\u5316\u4efb\u4f55\u985e\u578b\u7684\u6578\u7d44 \u8072\u660e\u985e\uff0c\u5167\u90e8\u985e\uff0c\u65b9\u6cd5\uff0c\u6210\u54e1\u8b8a\u91cf\uff0c\u975c\u614b\u6210\u54e1\u8b8a\u91cf\u548c\u65b9\u6cd5\u8b8a\u91cf\uff0c\u4e26\u6703\u61c9\u7528\u4efb\u4f55\u5408\u6cd5\u7684\u4fee\u98fe\u7b26\uff08\u5982public,final,static,abstract,\u7b49\u7b49\uff09\u3002\u80fd\u5920\u660e\u4e86\u9019\u4e9b\u4fee\u98fe\u7b26\u55ae\u7368\u548c\u7d44\u5408\u8d77\u4f86\u7684\u542b\u7fa9\uff0c\u4e26\u4e14\u77e5\u9053\u88ab\u4fee\u98fe\u7b26\u4fee\u98fe\u7684\u4efb\u610f\u5c0d\u8c61\u5728\u5404\u7a2e\u5305\u76f8\u95dc\u806f\u7cfb\u4e0b \u7684\u5f71\u97ff\u3002 \u7b2c\u4e8c\u90e8\u5206\uff1a\u6d41\u7a0b\u63a7\u5236\uff0c\u65b7\u8a00\u548c\u7570\u5e38\u8655\u7406 \u80fd\u5920\u6b63\u78ba\u4f7f\u7528if,switch\u8a9e\u53e5\u4e26\u4e14\u5728\u9019\u4e9b\u8a9e\u53e5\u4e2d\u80fd\u6b63\u78ba\u4f7f\u7528\u5408\u6cd5\u7684\u53c3\u6578\u985e\u578b\u3002 \u80fd\u5920\u6b63\u78ba\u4f7f\u7528\u6240\u6709\u5e36\u6a19\u7c3d\u6216\u4e0d\u5e36\u6a19\u7c3d\u7684\u5faa\u74b0\u8a9e\u53e5\uff0c\u80fd\u4f7f\u7528break,continue\uff0c\u80fd\u8a08\u7b97\u5728\u5faa\u74b0\u4e2d\u6216\u5faa\u74b0\u5f8c\u5faa\u74b0\u8a08\u6578\u5668\u7684\u503c\u3002 \u80fd\u5920\u6b63\u78ba\u4f7f\u7528\u7570\u5e38\u548c\u7570\u5e38\u8655\u7406\u8a9e\u53e5\uff08try,catch,finally\uff09\u3002\u80fd\u6b63\u78ba\u8072\u660e\u64f2\u51fa\u4f8b\u5916\u7684\u65b9\u6cd5\uff0c\u4e26\u77e5\u9053\u600e\u6a23\u8986\u84cb\u5b83\u3002 \u77e5\u9053\u5728\u7a0b\u5e8f\u6bb5\u7684\u7279\u5b9a\u9ede\u51fa\u73fe\u7684\u7570\u5e38\u5c0d\u7a0b\u5e8f\u7684\u5f71\u97ff\u3002\u5373\uff1a\u7570\u5e38\u53ef\u80fd\u662f\u4e00\u500bruntime exception,\u4e00\u500bchecked exception\u4e5f\u53ef\u80fd\u662f\u4e00\u500berror\u3002\uff08\u9019\u500b\u7a0b\u5e8f\u6bb5\u53ef\u80fd\u5305\u62ectry,catch,finally\u4e26\u4ee5\u4efb\u4f55\u53ef\u80fd\u7684\u5408\u6cd5\u7d44\u5408\u51fa\u73fe\u3002\uff09\u3002 \u80fd\u6b63\u78ba\u61c9\u7528\u65b7\u8a00\uff0c\u5340\u5206\u6b63\u78ba\u4f7f\u7528\u7684\u65b7\u8a00\u548c\u4e0d\u6b63\u78ba\u7684\u3002\u660e\u767d\u95dc\u65bc\u65b7\u8a00\u6a5f\u5236\u7684\u6b63\u78ba\u8aaa\u6cd5\u3002 \u7b2c\u4e09\u90e8\u5206\uff1a\u5783\u573e\u6536\u96c6 \u660e\u767d\u5783\u573e\u6536\u96c6\u6a5f\u5236\u78ba\u5b9a\u6027\u7684\u884c\u70ba\u3002 \u80fd\u7528\u7a0b\u5e8f\u986f\u5f0f\u7684\u4f7f\u4e00\u500b\u5c0d\u8c61\u80fd\u88ab\u5783\u573e\u6536\u96c6\u5668\u5408\u6cd5\u7684\u6536\u96c6\u3002 \u77e5\u9053\u5728\u7a0b\u5e8f\u7684\u54ea\u4e00\u9ede\u5783\u573e\u6536\u96c6\u5668\u80fd\u5408\u6cd5\u5730\u6536\u96c6\u4e00\u500b\u5c0d\u8c61\u3002 \u7b2c\u56db\u90e8\u5206\uff1a\u8a9e\u8a00\u57fa\u790e \u80fd\u6b63\u78ba\u69cb\u5efa\u5305\u8072\u660e\uff0cimport\u8072\u660e\uff0c\u985e\u8072\u660e\uff08\u5305\u62ec\u5167\u90e8\u985e\uff09\uff0c\u63a5\u53e3\u8072\u660e\uff0c\u65b9\u6cd5\u8072\u660e\uff08\u5305\u62ec\u7528\u65bc\u958b\u59cb\u4e00\u500b\u985e\u7684\u57f7\u884c\u7684main\u65b9\u6cd5\uff09\uff0c\u8b8a\u91cf\u8072\u660e\u53ca\u5176\u5176\u5b83\u7684\u4e00\u4e9b\u8aaa\u660e\u7b26\u3002 \u80fd\u5920\u6b63\u78ba\u4f7f\u7528\u4e00\u4e9b\u985e\uff0c\u9019\u4e9b\u985e\u8981\u9ebd\u5be6\u73fe\u4e86java.lang.Runnable\u9019\u500b\u63a5\u53e3\uff0c\u8981\u9ebd\u80fd\u6b63\u78ba\u5be6\u73fe\u5728\u554f\u984c\u4e2d\u69cb\u5efa\u7684\u4e00\u4e9b\u63a5\u53e3\u3002 \u77e5\u9053\u50b3\u5165main\u51fd\u6578\u7684\u547d\u4ee4\u884c\u53c3\u6578\u7684index value\u3002 \u77e5\u9053\u6240\u6709JAVA\u7684keyword\u3002\u8a3b\u610f\uff1a\u8003\u8a66\u4e2d\u4e0d\u6703\u51fa\u73fe\u8981\u4f60\u5340\u5206keyword\u548c\u5404\u7a2e\u5e38\u6578\u9019\u985e\u6df1\u5967\u7684\u554f\u984c\u3002 \u660e\u767d\u5982\u679c\u6c92\u6709\u986f\u5f0f\u5730\u8ce6\u503c\u7684\u5404\u7a2e\u8b8a\u91cf\u6216\u8005\u6578\u7d44\u88ab\u4f7f\u7528\u6703\u51fa\u73fe\u4ec0\u9ebd\u7d50\u679c\u3002 \u77e5\u9053\u6240\u6709\u539f\u59cb\u6578\u64da\u985e\u578b\u7684\u53d6\u503c\u7bc4\u570d\uff0c\u600e\u6a23\u8072\u660e\u4e00\u500bString\u7684\u5b57\u9762\u503c\u7b49\u7b49\u3002 \u7b2c\u4e94\u90e8\u5206\uff1a\u64cd\u4f5c\u8207\u8ce6\u503c \u80fd\u77e5\u9053\u7576\u4efb\u4f55\u64cd\u4f5c\u7b26\uff08\u5305\u62ec\u8ce6\u503c\u64cd\u4f5c\u7b26\u548cintanceof\u64cd\u4f5c\u7b26\uff09\u61c9\u7528\u65bc\u4efb\u4f55\u64cd\u4f5c\u6578\uff08\u4efb\u4f55\u985e\u578b\u7684\u985e\u6216\u8a2a\u554f\u80fd\u529b\u6216\u5169\u8005\u7684\u4efb\u610f\u7d44\u5408\uff09\u7684\u7d50\u679c\u3002 \u77e5\u9053String\uff0cBoolean\u548cObject\u985e\u4f7f\u7528equals(Object)\u65b9\u6cd5\u5f8c\u7684\u7d50\u679c\u3002 \u77e5\u9053\u7576\u5c0d\u5df2\u7d93\u77e5\u9053\u503c\u7684\u8b8a\u91cf\u9032\u884c&,|,&&,||\u64cd\u4f5c\u6642\uff0c\u54ea\u4e9b\u64cd\u4f5c\u6578\u88ab\u904b\u7b97\u4e86\uff0c\u8868\u9054\u5f0f\u6700\u7d42\u7684\u7d50\u679c\u662f\u600e\u6a23\u7684\u3002 \u77e5\u9053Object\u548c\u539f\u59cb\u985e\u578b\u6578\u64da\u50b3\u5165\u65b9\u6cd5\u7684\u4e0d\u540c\u65b9\u5f0f\uff0c\u77e5\u9053\u5982\u4f55\u5728\u9019\u4e9b\u65b9\u6cd5\u4e2d\u5982\u4f55\u9032\u884c\u8ce6\u503c\u6216\u5176\u5b83\u4fee\u6539\u64cd\u4f5c\u3002 \u7b2c\u516d\u90e8\u5206\uff1a\u8986\u84cb\uff0c\u91cd\u8f09\uff0c\u904b\u884c\u6642\u671f\u985e\u578b\u53ca\u5176\u9762\u5411\u5c0d\u8c61 \u77e5\u9053\u9762\u5411\u5c0d\u8c61\u8a2d\u8a08\u4e2d\u5c01\u88dd\u7684\u597d\u8655\u4e26\u80fd\u7528\u7a0b\u5e8f\u5be6\u73fe\u7dca\u5bc6\u5c01\u88dd\u7684\u985e\uff0c\u80fd\u77e5\u9053is a\u548chas a\u7684\u610f\u7fa9\u3002 \u80fd\u6b63\u78ba\u4f7f\u7528\u8986\u84cb\u548c\u91cd\u8f09\u7684\u65b9\u6cd5\uff0c\u80fd\u6b63\u78ba\u8abf\u7528\u7236\u985e\u6216\u8986\u84cb\u4e86\u7684\u69cb\u5efa\u5668\uff0c\u77e5\u9053\u8abf\u7528\u9019\u4e9b\u65b9\u6cd5\u5f8c\u7684\u7d50\u679c\u3002 \u80fd\u5be6\u4f8b\u5316\u4efb\u4f55\u5177\u9ad4\u7684\u4e00\u822c\u9802\u5c64\u985e\u548c\u5167\u90e8\u985e\u3002 \u7b2c\u4e03\u90e8\u5206\uff1a\u7dda\u7a0b \u80fd\u7528java.lang,Thread\u548cjava.lang.Runnable\u5169\u7a2e\u65b9\u6cd5\u5b9a\u7fa9\uff0c\u5be6\u4f8b\u5316\u548c\u958b\u59cb\u4e00\u500b\u65b0\u7684\u7dda\u7a0b\u3002 \u77e5\u9053\u54ea\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u963b\u6b62\u4e00\u500b\u7dda\u7a0b\u7684\u57f7\u884c\u3002 \u80fd\u4f7f\u7528synchronized,wait,notify\u548cnotifyAll\u53bb\u89e3\u6c7a\u907f\u514d\u540c\u6642\u8a2a\u554f\u53ca\u5176\u7dda\u7a0b\u9593\u76f8\u4e92\u901a\u8a0a\u7684\u554f\u984c\u3002 \u7576\u57f7\u884csynchronized,wait,notify\u548cnotifyAll\u6642\uff0c\u77e5\u9053\u7dda\u7a0b\u548c\u5c0d\u8c61\u9396\u4e4b\u9593\u7684\u4ea4\u4e92\u4f5c\u7528\u3002 \u7b2c\u516b\u90e8\u5206\uff1a\u5728java.lang\u5305\u4e2d\u7684\u57fa\u790e\u985e […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[39],"class_list":["post-14","post","type-post","status-publish","format-standard","hentry","category-sun","tag-scjp"],"_links":{"self":[{"href":"https:\/\/www.killtest.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/14","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.killtest.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.killtest.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.killtest.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.killtest.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14"}],"version-history":[{"count":0,"href":"https:\/\/www.killtest.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/14\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.killtest.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.killtest.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.killtest.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}