{"id":93,"date":"2015-03-30T11:49:23","date_gmt":"2015-03-30T03:49:23","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=93"},"modified":"2026-08-18T12:09:25","modified_gmt":"2026-08-18T04:09:25","slug":"java-super%e5%85%b3%e9%94%ae%e5%ad%97","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=93","title":{"rendered":"Java super\u5173\u952e\u5b57"},"content":{"rendered":"
\n

super<\/code> \u548c this<\/code> \u6210\u5bf9\u51fa\u73b0\uff1athis<\/code> \u8868\u793a\u5f53\u524d\u7c7b\u7684\u5b9e\u4f8b\uff0csuper<\/code> \u7528\u6765\u8bbf\u95ee\u7236\u7c7b<\/strong>\u3002<\/p>\n

\u5b50\u7c7b\u91cc\u53ef\u4ee5\u7528\u70b9\u53f7\u53d6\u7236\u7c7b\u7684\u6210\u5458\u53d8\u91cf\u548c\u65b9\u6cd5\uff1b\u65b9\u6cd5\u5b9a\u4e49\u5728\u66f4\u4e0a\u9762\u7684\u7956\u5148\u7c7b\u65f6\uff0cJava \u4f1a\u81ea\u52a8\u5411\u4e0a\u8ffd\u6eaf\uff0c\u76f4\u5230\u627e\u5230\u4e3a\u6b62\u3002\u8c03\u7528\u770b\u8d77\u6765\u5c31\u50cf\u672c\u7c7b\u81ea\u5df1\u7684\u884c\u4e3a\u4e00\u6837\u3002<\/p>\n

<\/p>\n\n\n\n\n\n\n\n\n
\u5bf9\u6bd4<\/th>\nthis<\/th>\nsuper<\/th>\n<\/tr>\n<\/thead>\n
\u6307\u5411<\/td>\n\u5f53\u524d\u5bf9\u8c61<\/td>\n\u4e0d\u662f\u5bf9\u8c61\u5f15\u7528\uff0c\u53ea\u662f\u8ba9\u7f16\u8bd1\u5668\u53bb\u8c03\u7236\u7c7b<\/td>\n<\/tr>\n
\u70b9\u53f7<\/td>\n\u672c\u7c7b\u6210\u5458<\/td>\n\u7236\u7c7b\u4e2d\u88ab\u8986\u76d6\u7684\u65b9\u6cd5\u3001\u53ef\u89c1\u7684\u6210\u5458<\/td>\n<\/tr>\n
\u6784\u9020<\/td>\nthis() \u8c03\u672c\u7c7b\u5176\u4ed6\u6784\u9020<\/td>\nsuper() \u8c03\u7236\u7c7b\u6784\u9020<\/td>\n<\/tr>\n
\u8d4b\u503c<\/td>\n\u53ef\u4ee5\u5f53\u5f15\u7528\u4f20\u9012<\/td>\n\u4e0d\u80fd\u628a super \u8d4b\u7ed9\u53e6\u4e00\u4e2a\u53d8\u91cf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e00\u3001\u8c03\u7528\u88ab\u8986\u76d6\u7684\u65b9\u6cd5\u548c\u9690\u85cf\u53d8\u91cf<\/h2>\n

super<\/code> \u7684\u7b2c\u4e00\u4ef6\u4e8b\uff1a\u70b9\u53d6\u7236\u7c7b\u91cc\u5df2\u7ecf\u88ab\u5b50\u7c7b\u8986\u76d6\u7684\u65b9\u6cd5\u3002\u7236\u7c7b private<\/code> \u5b57\u6bb5\u5bf9\u5b50\u7c7b\u4e0d\u53ef\u89c1\uff0c\u8981\u901a\u8fc7 getter \u95f4\u63a5\u8bfb\u53d6\uff0c\u4e0d\u80fd\u5199 super.desc<\/code>\u3002<\/p>\n

public class Demo {\n    public static void main(String[] args) {\n        Dog obj = new Dog();\n        obj.move();\n    }\n}\nclass Animal {\n    private String desc = \"Animals are human's good friends\";\n    public String getDesc() { return desc; }\n    public void move() {\n        System.out.println(\"Animals can move\");\n    }\n}\nclass Dog extends Animal {\n    public void move() {\n        super.move();  \/\/ \u8c03\u7528\u7236\u7c7b\u7684\u65b9\u6cd5\n        System.out.println(\"Dogs can walk and run\");\n        System.out.println(\"Please remember: \" + super.getDesc());\n    }\n}<\/code><\/pre>\n
\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n
Animals can move\nDogs can walk and run\nPlease remember: Animals are human's good friends<\/code><\/pre>\n
move()<\/code> \u4e5f\u53ef\u4ee5\u5b9a\u4e49\u5728\u7236\u7c7b\u7684\u7236\u7c7b\u91cc\uff0c\u67e5\u627e\u4f1a\u4e00\u76f4\u5411\u4e0a\u8d70\uff0c\u76f4\u5230\u627e\u5230\u8be5\u65b9\u6cd5\u3002<\/p>\n
\u4e8c\u3001\u8c03\u7528\u7236\u7c7b\u7684\u6784\u9020\u65b9\u6cd5<\/h2>\n
\u5f88\u591a\u65f6\u5019\u9760\u9ed8\u8ba4\u7684\u65e0\u53c2\u6784\u9020\u53bb\u521d\u59cb\u5316\u7236\u7c7b\u90e8\u5206\u5c31\u591f\u4e86\u3002\u7236\u7c7b\u53ea\u6709\u5e26\u53c2\u6784\u9020\u65f6\uff0c\u5fc5\u987b\u5728\u5b50\u7c7b\u6784\u9020\u91cc\u663e\u5f0f<\/strong>\u5199 super(\u53c2\u6570)<\/code>\u3002<\/p>\n
public class Demo {\n    public static void main(String[] args) {\n        Dog obj = new Dog(\"\u82b1\u82b1\", 3);\n        obj.say();\n    }\n}\nclass Animal {\n    String name;\n    public Animal(String name) {\n        this.name = name;\n    }\n}\nclass Dog extends Animal {\n    int age;\n    public Dog(String name, int age) {\n        super(name);\n        this.age = age;\n    }\n    public void say() {\n        System.out.println(\"\u6211\u662f\u4e00\u53ea\u53ef\u7231\u7684\u5c0f\u72d7\uff0c\u6211\u7684\u540d\u5b57\u53eb\" + name + \"\uff0c\u6211\" + age + \"\u5c81\u4e86\");\n    }\n}<\/code><\/pre>\n
\u8fd0\u884c\u7ed3\u679c\uff1a\u6211\u662f\u4e00\u53ea\u53ef\u7231\u7684\u5c0f\u72d7\uff0c\u6211\u7684\u540d\u5b57\u53eb\u82b1\u82b1\uff0c\u62113\u5c81\u4e86\u3002<\/p>\n
    \n
  • \n
    super()<\/code> \u548c this()<\/code> \u90fd\u5fc5\u987b\u653e\u5728\u6784\u9020\u65b9\u6cd5\u7b2c\u4e00\u884c\u3002<\/section>\n<\/li>\n
  • \n
    \u4e0d\u80fd\u5728\u6784\u9020\u65b9\u6cd5\u4ee5\u5916\u8c03\u7528\u6784\u9020\u65b9\u6cd5\u3002<\/section>\n<\/li>\n
  • \n
    \u4e00\u4e2a\u6784\u9020\u65b9\u6cd5\u5185\u53ea\u80fd\u8c03\u7528\u4e00\u4e2a\uff1a\u8981\u4e48 this()<\/code>\uff0c\u8981\u4e48 super()<\/code>\u3002<\/section>\n<\/li>\n<\/ul>\n
    \u5982\u679c\u7f16\u5199\u7684\u6784\u9020\u65b9\u6cd5\u65e2\u6ca1\u6709\u8c03\u7528 super()<\/code> \u4e5f\u6ca1\u6709\u8c03\u7528 this()<\/code>\uff0c\u7f16\u8bd1\u5668\u4f1a\u81ea\u52a8\u63d2\u5165\u4e00\u6761\u4e0d\u5e26\u53c2\u6570\u7684 super()<\/code>\u3002\u7236\u7c7b\u6ca1\u6709\u65e0\u53c2\u6784\u9020\u65f6\uff0c\u8fd9\u6761\u9690\u5f0f\u8c03\u7528\u4f1a\u7f16\u8bd1\u5931\u8d25\uff0c\u5fc5\u987b\u81ea\u5df1\u5199\u51fa\u5339\u914d\u7684 super(\u2026)<\/code>\u3002<\/p>\n
    \u4e09\u3001super \u4e0d\u662f\u5bf9\u8c61\u5f15\u7528<\/h2>\n
    super<\/code> \u4e0d\u80fd\u8d4b\u503c\u7ed9\u53e6\u4e00\u4e2a\u5bf9\u8c61\u53d8\u91cf\uff0c\u5b83\u53ea\u662f\u6307\u793a\u7f16\u8bd1\u5668\u8c03\u7528\u7236\u7c7b\u65b9\u6cd5\u7684\u7279\u6b8a\u5173\u952e\u5b57\uff0c\u6ca1\u6709\u72ec\u7acb\u7684\u201c\u7236\u7c7b\u5bf9\u8c61\u5f15\u7528\u201d\u53ef\u4ee5\u62ff\u6765\u4f20\u9012\u3002<\/p>\n
    \n
    \u4e00\u53e5\u8bdd\u603b\u7ed3\uff1asuper \u7528\u6765\u70b9\u7236\u7c7b\u88ab\u8986\u76d6\u7684\u65b9\u6cd5\u548c\u6784\u9020\uff1b\u5fc5\u987b\u5199\u5728\u6784\u9020\u7b2c\u4e00\u53e5\uff0c\u5b83\u672c\u8eab\u4e0d\u662f\u4e00\u4e2a\u53ef\u4ee5\u8d4b\u503c\u7684\u5bf9\u8c61\u5f15\u7528\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
    super \u548c this \u6210\u5bf9\u51fa\u73b0\uff1athis \u8868\u793a\u5f53\u524d\u7c7b\u7684\u5b9e\u4f8b\uff0csuper \u7528\u6765\u8bbf\u95ee\u7236\u7c7b\u3002 \u5b50\u7c7b\u91cc\u53ef\u4ee5\u7528\u70b9\u53f7\u53d6 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[33,43],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/93"}],"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=93"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/93\/revisions"}],"predecessor-version":[{"id":1735,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/93\/revisions\/1735"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=93"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=93"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=93"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}