{"id":80,"date":"2015-03-30T11:30:37","date_gmt":"2015-03-30T03:30:37","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=80"},"modified":"2015-04-18T21:20:45","modified_gmt":"2015-04-18T13:20:45","slug":"java%e7%b1%bb%e4%b8%ad%e6%96%b9%e6%b3%95%e9%87%8d%e8%bd%bd","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=80","title":{"rendered":"Java\u7c7b\u4e2d\u65b9\u6cd5\u91cd\u8f7d"},"content":{"rendered":"

\u5728Java\u4e2d\uff0c\u540c\u4e00\u4e2a\u7c7b\u4e2d\u7684\u591a\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u6709\u76f8\u540c\u7684\u540d\u5b57\uff0c\u53ea\u8981\u5b83\u4eec\u7684\u53c2\u6570\u5217\u8868\u4e0d\u540c\u5c31\u53ef\u4ee5\uff0c\u8fd9\u88ab\u79f0\u4e3a\u65b9\u6cd5\u91cd\u8f7d(method overloading)\u3002<\/p>\n

\u53c2\u6570\u5217\u8868\u53c8\u53eb\u53c2\u6570\u7b7e\u540d\uff0c\u5305\u62ec\u53c2\u6570\u7684\u7c7b\u578b\u3001\u53c2\u6570\u7684\u4e2a\u6570\u548c\u53c2\u6570\u7684\u987a\u5e8f\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u4e0d\u540c\u5c31\u53eb\u505a\u53c2\u6570\u5217\u8868\u4e0d\u540c\u3002<\/p>\n

\u91cd\u8f7d\u662f\u9762\u5411\u5bf9\u8c61\u7684\u4e00\u4e2a\u57fa\u672c\u7279\u6027\u3002<\/p>\n

<\/p>\n

\u4e0b\u9762\u770b\u4e00\u4e2a\u8be6\u7ec6\u7684\u5b9e\u4f8b\u3002
\n[java]public class Demo{
\n\u00a0\u00a0\u00a0 \/\/ \u4e00\u4e2a\u666e\u901a\u7684\u65b9\u6cd5\uff0c\u4e0d\u5e26\u53c2\u6570
\n\u00a0\u00a0\u00a0 void test(){
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("No parameters");
\n\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0 \/\/ \u91cd\u8f7d\u4e0a\u9762\u7684\u65b9\u6cd5\uff0c\u5e76\u4e14\u5e26\u4e86\u4e00\u4e2a\u6574\u578b\u53c2\u6570
\n\u00a0\u00a0\u00a0 void test(int a){
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("a: " + a);
\n\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0 \/\/ \u91cd\u8f7d\u4e0a\u9762\u7684\u65b9\u6cd5\uff0c\u5e76\u4e14\u5e26\u4e86\u4e24\u4e2a\u53c2\u6570
\n\u00a0\u00a0\u00a0 void test(int a,int b){
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("a and b: " + a + " " + b);
\n\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0 \/\/ \u91cd\u8f7d\u4e0a\u9762\u7684\u65b9\u6cd5\uff0c\u5e76\u4e14\u5e26\u4e86\u4e00\u4e2a\u53cc\u7cbe\u5ea6\u53c2\u6570
\n\u00a0\u00a0\u00a0 double test(double a){
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("double a: " + a);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return a*a;
\n\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0
\n\u00a0\u00a0\u00a0 public static void main(String args[]){
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Demo obj= new Demo();
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 obj.test();
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 obj.test(2);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 obj.test(2,3);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 obj.test(2.0);
\n\u00a0\u00a0\u00a0 }
\n}
\n\u8fd0\u884c\u7ed3\u679c\uff1a
\nNo parameters
\na: 2
\na and b: 2 3
\ndouble a: 2.0[\/java]<\/p>\n

\u901a\u8fc7\u4e0a\u9762\u7684\u5b9e\u4f8b\uff0c\u8bfb\u8005\u53ef\u4ee5\u770b\u51fa\uff0c\u91cd\u8f7d\u5c31\u662f\u5728\u4e00\u4e2a\u7c7b\u4e2d\uff0c\u6709\u76f8\u540c\u7684\u51fd\u6570\u540d\u79f0\uff0c\u4f46\u5f62\u53c2\u4e0d\u540c\u7684\u51fd\u6570\u3002\u91cd\u8f7d\u7684\u7ed3\u679c\uff0c\u53ef\u4ee5\u8ba9\u4e00\u4e2a\u7a0b\u5e8f\u6bb5\u5c3d\u91cf\u51cf\u5c11\u4ee3\u7801\u548c\u65b9\u6cd5\u7684\u79cd\u7c7b\u3002<\/p>\n

\u8bf4\u660e\uff1a
\n\u53c2\u6570\u5217\u8868\u4e0d\u540c\u5305\u62ec\uff1a\u4e2a\u6570\u4e0d\u540c\u3001\u7c7b\u578b\u4e0d\u540c\u548c\u987a\u5e8f\u4e0d\u540c\u3002
\n\u4ec5\u4ec5\u53c2\u6570\u53d8\u91cf\u540d\u79f0\u4e0d\u540c\u662f\u4e0d\u53ef\u4ee5\u7684\u3002
\n\u8ddf\u6210\u5458\u65b9\u6cd5\u4e00\u6837\uff0c\u6784\u9020\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u91cd\u8f7d\u3002
\n\u58f0\u660e\u4e3afinal\u7684\u65b9\u6cd5\u4e0d\u80fd\u88ab\u91cd\u8f7d\u3002
\n\u58f0\u660e\u4e3astatic\u7684\u65b9\u6cd5\u4e0d\u80fd\u88ab\u91cd\u8f7d\uff0c\u4f46\u662f\u80fd\u591f\u88ab\u518d\u6b21\u58f0\u660e\u3002<\/p>\n

\u65b9\u6cd5\u7684\u91cd\u8f7d\u7684\u89c4\u5219\uff1a
\n\u65b9\u6cd5\u540d\u79f0\u5fc5\u987b\u76f8\u540c\u3002
\n\u53c2\u6570\u5217\u8868\u5fc5\u987b\u4e0d\u540c\uff08\u4e2a\u6570\u4e0d\u540c\u3001\u6216\u7c7b\u578b\u4e0d\u540c\u3001\u53c2\u6570\u6392\u5217\u987a\u5e8f\u4e0d\u540c\u7b49\uff09\u3002
\n\u65b9\u6cd5\u7684\u8fd4\u56de\u7c7b\u578b\u53ef\u4ee5\u76f8\u540c\u4e5f\u53ef\u4ee5\u4e0d\u76f8\u540c\u3002
\n\u4ec5\u4ec5\u8fd4\u56de\u7c7b\u578b\u4e0d\u540c\u4e0d\u8db3\u4ee5\u6210\u4e3a\u65b9\u6cd5\u7684\u91cd\u8f7d\u3002<\/p>\n

\u65b9\u6cd5\u91cd\u8f7d\u7684\u5b9e\u73b0\uff1a
\n\u65b9\u6cd5\u540d\u79f0\u76f8\u540c\u65f6\uff0c\u7f16\u8bd1\u5668\u4f1a\u6839\u636e\u8c03\u7528\u65b9\u6cd5\u7684\u53c2\u6570\u4e2a\u6570\u3001\u53c2\u6570\u7c7b\u578b\u7b49\u53bb\u9010\u4e2a\u5339\u914d\uff0c\u4ee5\u9009\u62e9\u5bf9\u5e94\u7684\u65b9\u6cd5\uff0c\u5982\u679c\u5339\u914d\u5931\u8d25\uff0c\u5219\u7f16\u8bd1\u5668\u62a5\u9519\uff0c\u8fd9\u53eb\u505a\u91cd\u8f7d\u5206\u8fa8\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728Java\u4e2d\uff0c\u540c\u4e00\u4e2a\u7c7b\u4e2d\u7684\u591a\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u6709\u76f8\u540c\u7684\u540d\u5b57\uff0c\u53ea\u8981\u5b83\u4eec\u7684\u53c2\u6570\u5217\u8868\u4e0d\u540c\u5c31\u53ef\u4ee5\uff0c\u8fd9\u88ab\u79f0\u4e3a\u65b9\u6cd5\u91cd\u8f7d(metho […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[32],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/80"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=80"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/80\/revisions"}],"predecessor-version":[{"id":374,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/80\/revisions\/374"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=80"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=80"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=80"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}