{"id":189,"date":"2023-11-10T10:59:16","date_gmt":"2023-11-10T02:59:16","guid":{"rendered":"http:\/\/ericw.top\/?p=189"},"modified":"2023-11-10T12:02:12","modified_gmt":"2023-11-10T04:02:12","slug":"java%e5%9f%ba%e7%a1%80-%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"http:\/\/ericw.top\/?p=189","title":{"rendered":"JAVA\u57fa\u7840\u2014\u2014\u65b9\u6cd5"},"content":{"rendered":"

JAVA\u57fa\u7840 \u3010\u65b9\u6cd5\u3011<\/h1>\n

\u4e00\u3001Java\u65b9\u6cd5\u8be6\u89e3<\/h2>\n

\u4ec0\u4e48\u662f\u65b9\u6cd5<\/h3>\n

JAVA\u65b9\u6cd5\u7c7b\u4f3c\u4e8e\u5176\u4ed6\u8bed\u8a00\u7684\u51fd\u6570\uff0c\u662f\u4e00\u6bb5\u7528\u6765\u5b8c\u6210\u7279\u5b9a\u529f\u80fd\u7684\u4ee3\u7801\u7247\u6bb5<\/p>\n

\u4e3a\u4ec0\u4e48\u8981\u58f0\u660e\u65b9\u6cd5<\/h3>\n
    \n
  1. \u628a\u590d\u7528\u7684\u903b\u8f91\u62bd\u53d6\u51fa\u6765\uff0c\u5c01\u88c5\u6210\u65b9\u6cd5\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u91cd\u7528\u6027<\/li>\n
  2. \u5b9e\u73b0\u76f8\u5bf9\u5bf9\u7acb\u7684\u903b\u8f91\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u7ef4\u62a4\u6027<\/li>\n
  3. \u53ef\u4ee5\u5bf9\u5177\u4f53\u7684\u5b9e\u73b0\u8fdb\u884c\u9690\u85cf\u3001\u5c01\u88c5<\/li>\n<\/ol>\n

    \u65b9\u6cd5\u7684\u4f5c\u7528<\/h3>\n

    \u7b80\u5316\u4ee3\u7801\uff0c\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\uff0c\u53ef\u7ef4\u62a4\u6027\uff0c\u53ef\u91cd\u7528\u6027<\/p>\n

    \u65b9\u6cd5\u7684\u58f0\u660e\u683c\u5f0f<\/h3>\n

    \u8bed\u6cd5\uff1a<\/p>\n

    [\u4fee\u9970\u7b26] \u8fd4\u56de\u7c7b\u578b \u65b9\u6cd5\u540d(\u53c2\u6570\u5217\u8868) {\n    \/\/ \u65b9\u6cd5\u4f53\n    return \u8fd4\u56de\u503c; \/\/ \u5982\u679c\u6709\u8fd4\u56de\u503c\u7684\u8bdd\n}<\/code><\/pre>\n
    \n
    \u4fee\u9970\u7b26\uff08Modifiers\uff09\uff1a\u4fee\u9970\u7b26\u662f\u53ef\u9009\u7684\uff0c\u7528\u4e8e\u63a7\u5236\u65b9\u6cd5\u7684\u53ef\u89c1\u6027\u548c\u884c\u4e3a\u3002\u5e38\u89c1\u7684\u4fee\u9970\u7b26\u5305\u62ecpublic\u3001private\u3001protected\u7b49\u3002\u5982\u679c\u4e0d\u4f7f\u7528\u4fee\u9970\u7b26\uff0c\u5219\u65b9\u6cd5\u5177\u6709\u9ed8\u8ba4\u7684\u5305\u5185\u53ef\u89c1\u6027\u3002<\/p>\n
    \u8fd4\u56de\u7c7b\u578b\uff08Return Type\uff09\uff1a\u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a\u503c\uff0c\u4e5f\u53ef\u4ee5\u4e0d\u8fd4\u56de\uff08\u8fd4\u56de\u7c7b\u578b\u4e3avoid\uff09\u3002\u8fd4\u56de\u7c7b\u578b\u6307\u5b9a\u4e86\u65b9\u6cd5\u8fd4\u56de\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982int\u3001String\u7b49\u3002<\/p>\n
    \u65b9\u6cd5\u540d\uff08Method Name\uff09\uff1a\u65b9\u6cd5\u540d\u662f\u4e00\u4e2a\u6807\u8bc6\u7b26\uff0c\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u65b9\u6cd5\u3002\u65b9\u6cd5\u540d\u5e94\u5177\u6709\u63cf\u8ff0\u6027\uff0c\u80fd\u591f\u6e05\u6670\u5730\u8868\u8fbe\u65b9\u6cd5\u7684\u529f\u80fd\u3002<\/p>\n
    \u53c2\u6570\u5217\u8868\uff08Parameter List\uff09\uff1a\u53c2\u6570\u662f\u65b9\u6cd5\u7684\u8f93\u5165\uff0c\u53ef\u4ee5\u6709\u96f6\u4e2a\u6216\u591a\u4e2a\u3002\u53c2\u6570\u5217\u8868\u5305\u62ec\u53c2\u6570\u7684\u6570\u636e\u7c7b\u578b\u548c\u53c2\u6570\u540d\u3002\u53c2\u6570\u7528\u9017\u53f7\u5206\u9694\uff0c\u653e\u5728\u4e00\u5bf9\u62ec\u53f7\u5185\u3002<\/p>\n
    \u65b9\u6cd5\u4f53\uff08Method Body\uff09\uff1a\u65b9\u6cd5\u4f53\u5305\u542b\u4e86\u65b9\u6cd5\u7684\u5b9e\u9645\u64cd\u4f5c\uff0c\u5373\u65b9\u6cd5\u8981\u6267\u884c\u7684\u4ee3\u7801\u5757\u3002\u65b9\u6cd5\u4f53\u7531\u4e00\u5bf9\u5927\u62ec\u53f7\u5305\u56f4\u3002<\/p>\n
    \u8fd4\u56de\u503c\uff08Return Value\uff09\uff1a\u5982\u679c\u65b9\u6cd5\u6709\u8fd4\u56de\u503c\uff0c\u9700\u8981\u4f7f\u7528return\u8bed\u53e5\u8fd4\u56de\u4e00\u4e2a\u503c\u3002\u8fd4\u56de\u503c\u7684\u6570\u636e\u7c7b\u578b\u5fc5\u987b\u4e0e\u65b9\u6cd5\u7684\u8fd4\u56de\u7c7b\u578b\u5339\u914d\u3002<\/p>\n<\/blockquote>\n
    \u4e0a\u9762\u662f\u65b9\u6cd5\u7684\u4e00\u4e9b\u7b80\u5355\u6982\u8ff0\uff0c\u4e0b\u9762\u6211\u4eec\u6b63\u5f0f\u8fdb\u5165JAVA\u65b9\u6cd5\u4e4b\u8def\uff01<\/p>\n
    \n
    \u9996\u5148\u5c55\u793a\u4e00\u4e2a\u7b80\u5355\u7684\u65b9\u6cd5\uff1a<\/p>\n
    public int add(int num1, int num2) {\n    int sum = num1 + num2;\n    return sum;\n}<\/code><\/pre>\n
    \u5728\u4e0a\u9762\u7684\u5b9e\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3aadd<\/code>\u7684\u65b9\u6cd5\uff0c\u5979\u63a5\u53d7\u4e24\u4e2a\u6574\u6570\u53c2\u6570num1<\/code>\u548cnum2<\/code>\uff0c\u5c06\u4ed6\u4eec\u76f8\u52a0\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n
    \u4e8c\u3001\u65b9\u6cd5\u7684\u8c03\u7528<\/h2>\n
    \u5b9a\u4e49\u65b9\u6cd5\u53ea\u662f\u7b2c\u4e00\u6b65\uff0c\u8981\u4f7f\u7528\u65b9\u6cd5\uff0c\u9700\u8981\u5728\u5408\u9002\u7684\u5730\u65b9\u8fdb\u884c\u8c03\u7528\u3002
    \n\u65b9\u6cd5\u7684\u8c03\u7528\u901a\u5e38\u53d1\u751f\u5728\u7c7b\u7684\u5185\u90e8\u6216\u5916\u90e8\u3002<\/strong><\/p>\n
    \u8c03\u7528\u65b9\u6cd5<\/h3>\n
    \u5982\u679c\u8981\u8c03\u7528\u4e00\u4e2a\u65b9\u6cd5\uff0c\u4f60\u9700\u8981\u77e5\u9053\u65b9\u6cd5\u7684\u540d\u79f0\u548c\u6240\u9700\u7684\u53c2\u6570\uff1a<\/p>\n
    \u8fd4\u56de\u503c\u7c7b\u578b \u7ed3\u679c = \u65b9\u6cd5\u540d(\u53c2\u6570\u5217\u8868);<\/code><\/pre>\n
    \u4f8b\uff1a<\/p>\n
    int result = add(5, 3);<\/code><\/pre>\n
    \u65b9\u6cd5\u7684\u8fd4\u56de\u503c<\/h3>\n
    \u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de\u503c\uff0c\u4e5f\u53ef\u4ee5\u4e0d\u8fd4\u56de\uff08void<\/code>\uff09\u3002
    \n\u5982\u679c\u65b9\u6cd5\u6709\u8fd4\u56de\u503c\uff0c\u4f60\u9700\u8981\u4f7f\u7528return<\/code>\u8bed\u53e5\u5c06\u503c\u8fd4\u56de\u7ed9\u8c03\u7528\u8005\u3002\u8fd4\u56de\u6570\u636e\u7c7b\u578b\u4e0e\u65b9\u6cd5\u8fd4\u56de\u7c7b\u578b\u5339\u914d\u3002<\/p>\n
    public int add(int num1, int num2) {\n    int sum = num1 + num2;\n    return sum;\n}<\/code><\/pre>\n
    \u65b9\u6cd5\u7684\u8c03\u7528\u793a\u4f8b<\/h3>\n
    \u5c55\u793a\u4e00\u4e2a\u5b8c\u6574\u7684\u6848\u4f8b\uff1a<\/p>\n
    public class Calculator {\n    public int add(int num1, int num2) {\n        int sum = num1 + num2;\n        return sum;\n    }\n\n    public int subtract(int num1, int num2) {\n        int difference = num1 - num2;\n        return difference;\n    }\n\n    public int multiply(int num1, int num2) {\n        int product = num1 * num2;\n        return product;\n    }\n\n    public double divide(double num1, double num2) {\n        if (num2 == 0) {\n            System.out.println("\u9664\u6570\u4e0d\u80fd\u4e3a\u96f6\uff01");\n            return 0.0; \/\/ \u907f\u514d\u9664\u4ee5\u96f6\u7684\u9519\u8bef\n        }\n        double quotient = num1 \/ num2;\n        return quotient;\n    }\n\n    public static void main(String[] args) {\n        Calculator calculator = new Calculator();\n\n        \/\/ \u8c03\u7528\u52a0\u6cd5\u65b9\u6cd5\n        int sumResult = calculator.add(5, 3);\n        System.out.println("5 + 3 = " + sumResult);\n\n        \/\/ \u8c03\u7528\u51cf\u6cd5\u65b9\u6cd5\n        int subtractResult = calculator.subtract(10, 4);\n        System.out.println("10 - 4 = " + subtractResult);\n\n        \/\/ \u8c03\u7528\u4e58\u6cd5\u65b9\u6cd5\n        int multiplyResult = calculator.multiply(7, 6);\n        System.out.println("7 * 6 = " + multiplyResult);\n\n        \/\/ \u8c03\u7528\u9664\u6cd5\u65b9\u6cd5\n        double divideResult = calculator.divide(8.0, 2.0);\n        System.out.println("8.0 \/ 2.0 = " + divideResult);\n    }\n}\n<\/code><\/pre>\n
    \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3aCalculator\u7684\u7c7b\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u56db\u4e2a\u4e0d\u540c\u7684\u65b9\u6cd5\u7528\u4e8e\u6267\u884c\u52a0\u6cd5\u3001\u51cf\u6cd5\u3001\u4e58\u6cd5\u548c\u9664\u6cd5\u3002\u7136\u540e\u5728main\u65b9\u6cd5\u4e2d\u521b\u5efa\u4e86Calculator\u7684\u5b9e\u4f8b\uff0c\u5e76\u8c03\u7528\u4e86\u8fd9\u4e9b\u65b9\u6cd5\u6765\u6267\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\u3002<\/p>\n
    \u4e09\u3001\u65b9\u6cd5\u7684\u53c2\u6570<\/h2>\n
    \u65b9\u6cd5\u53ef\u4ee5\u6709\u591a\u4e2a\u53c2\u6570\u6216\u6ca1\u6709\u53c2\u6570\uff0c\u8fd9\u4e9b\u53c2\u6570\u662f\u65b9\u6cd5\u5728\u6267\u884c\u65f6\u6240\u9700\u7684\u8f93\u5165\u6570\u636e\u3002<\/p>\n
    \u53c2\u6570\u7684\u4f20\u9012<\/h3>\n
    \u53c2\u6570\u7684\u4f20\u9012\u662f\u6307\u5728\u65b9\u6cd5\u8c03\u7528\u65f6\u5c06\u5b9e\u9645\u503c\u4f20\u9012\u7ed9\u65b9\u6cd5\u7684\u53c2\u6570\u3002\u65b9\u6cd5\u5b9a\u4e49\u4e2d\u7684\u53c2\u6570\u79f0\u4e3a\u5f62\u5f0f\u53c2\u6570\uff08\u5f62\u53c2\uff09\u3002<\/p>\n
    \u65b9\u6cd5\u7684\u91cd\u8f7d<\/h3>\n
    JAVA\u652f\u6301\u65b9\u6cd5\u7684\u91cd\u8f7d\uff0c\u8fd9\u610f\u5473\u7740\u4f60\u53ef\u4ee5\u5728\u540c\u4e00\u4e2a\u7c7b\u4e2d\u5b9a\u4e49\u591a\u4e2a\u65b9\u6cd5\uff0c\u4ed6\u4eec\u6709\u76f8\u540c\u7684\u540d\u79f0\u4f46\u4e0d\u540c\u6570\u5217\u8868\uff0c\u65b9\u6cd5\u7684\u91cd\u8f7d\u5141\u8bb8\u4f60\u6839\u636e\u4e0d\u540c\u7684\u53c2\u6570\u6765\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u3002<\/p>\n
    public int add(int a, int b) {\n    return a + b;\n}\n\npublic double add(double a, double b) {\n    return a + b;\n}<\/code><\/pre>\n
    \u56db\u3001\u65b9\u6cd5\u7684\u8fd4\u56de\u503c<\/h2>\n
    \u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a\u503c\uff0c\u6216\u8005\u4e0d\u8fd4\u56de\uff08void<\/code>\uff09\u3002\u8fd4\u56de\u503c\u7c7b\u578b\u6709\u65b9\u6cd5\u8fd4\u56de\u7c7b\u578b\u6307\u5b9a\uff0c\u5982\u679c\u65b9\u6cd5\u6709\u8fd4\u56de\u503c\uff0c\u90a3\u4e48\u4ed6\u5fc5\u987b\u4f7f\u7528return<\/code>\u8bed\u53e5\u5c06\u503c\u8fd4\u56de\u7ed9\u8c03\u7528\u8005\u3002<\/p>\n
    \u8fd4\u56de\u503c\u7684\u4f5c\u7528<\/h3>\n
    \u8fd4\u56de\u503c\u662f\u65b9\u6cd5\u6267\u884c\u540e\u7684\u7ed3\u679c\uff0c\u53ef\u4ee5\u88ab\u8c03\u7528\u8005\u4f7f\u7528\u3002<\/p>\n
    \u8fd4\u56devoid<\/code>\u7c7b\u578b<\/h3>\n
    \u6709\u4e9b\u65b9\u6cd5\u4e0d\u9700\u8981\u8fd4\u56de\u503c\uff0c\u5b83\u4eec\u7684\u8fd4\u56de\u7c7b\u578b\u662fvoid\u3002\u8fd9\u8868\u793a\u65b9\u6cd5\u6267\u884c\u540e\u4e0d\u8fd4\u56de\u4efb\u4f55\u6570\u636e\u3002<\/p>\n
    public void printMessage(String message) {\n    System.out.println(message);\n}<\/code><\/pre>\n
    \u4e94\u3001\u5f02\u5e38\u5904\u7406<\/h2>\n
    \u5728\u65b9\u6cd5\u4e2d\uff0c\u4f1a\u51fa\u73b0\u5404\u79cd\u5f02\u5e38\u60c5\u51b5\uff0c\u4f8b\uff1a\u7a7a\u6307\u9488\u5f15\u7528\u3002\u4e3a\u4e86\u786e\u4fdd\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\uff0c\u9700\u8981\u5728\u65b9\u6cd5\u4e2d\u8fdb\u884c\u5f02\u5e38\u5904\u7406\u3002<\/p>\n
    \u4f7f\u7528try-catch<\/code>\u5757<\/h3>\n
    \u53ef\u4ee5\u4f7f\u7528try-catch\u5757\u6765\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\u3002
    \ntry\u5757\u4e2d\u5305\u542b\u80af\u82f1\u6cd5\u5f02\u5e38\u7684\u4ee3\u7801\uff0c\u800ccatch\u5757\u7528\u4e8e\u6355\u83b7\u5f02\u5e38\u548c\u5904\u7406\u5f02\u5e38\u3002<\/p>\n
    public void divide(int a, int b) {\n    try {\n        int result = a \/ b;\n        System.out.println("\u7ed3\u679c\uff1a" + result);\n    } catch (ArithmeticException e) {\n        System.out.println("\u9664\u6cd5\u5f02\u5e38\uff1a" + e.getMessage());\n    }\n}<\/code><\/pre>\n
    \u4f7f\u7528throws<\/code>\u58f0\u660e\u5f02\u5e38<\/h3>\n
    \u5982\u679c\u4e00\u4e2a\u65b9\u6cd5\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\uff0c\u4f46\u4e0d\u5e0c\u671b\u5728\u65b9\u6cd5\u5185\u90e8\u5904\u7406\u5f02\u5e38\uff0c\u53ef\u4ee5\u5728\u65b9\u6cd5\u4e2d\u58f0\u660e\u4f7f\u7528throws<\/code>\u5173\u952e\u5b57\u6765\u629b\u51fa\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38<\/p>\n
    public double divide(double a, double b) throws ArithmeticException {\n    if (b == 0) {\n        throw new ArithmeticException("\u9664\u6570\u4e0d\u80fd\u4e3a\u96f6");\n    }\n    double quotient = a \/ b;\n    return quotient;\n}<\/code><\/pre>\n
    \u516d\u3001\u65b9\u6cd5\u7684\u6700\u4f73\u5b9e\u8df5<\/h2>\n
    \u9075\u5faa\u8fd9\u4e9b\u6700\u4f73\u5b9e\u8df5\u53ef\u4ee5\u5e2e\u52a9\u4f60\u7f16\u5199\u9ad8\u8d28\u91cf\u3001\u53ef\u7ef4\u62a4\u7684\u65b9\u6cd5\uff0c\u63d0\u9ad8\u4f60\u7684\u7f16\u7a0b\u6548\u7387\u548c\u4ee3\u7801\u8d28\u91cf\u3002\u5728\u7f16\u7a0b\u8fc7\u7a0b\u4e2d\uff0c\u6ce8\u610f\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u6027\u80fd\u4f18\u5316\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n
    1. \u65b9\u6cd5\u540d\u5e94\u5177\u6709\u63cf\u8ff0\u6027\uff1a<\/strong> \u65b9\u6cd5\u540d\u5e94\u8be5\u80fd\u591f\u6e05\u6670\u5730\u8868\u8fbe\u65b9\u6cd5\u7684\u529f\u80fd\uff0c\u8ba9\u5176\u4ed6\u4eba\u80fd\u591f\u5bb9\u6613\u7406\u89e3\u3002\u9075\u5faa\u547d\u540d\u89c4\u8303\uff0c\u4f7f\u7528\u6709\u610f\u4e49\u7684\u65b9\u6cd5\u540d\u3002<\/p>\n
    2. \u53c2\u6570\u540d\u79f0\u5e94\u5177\u6709\u63cf\u8ff0\u6027\uff1a<\/strong> \u65b9\u6cd5\u7684\u53c2\u6570\u540d\u79f0\u5e94\u8be5\u5177\u6709\u63cf\u8ff0\u6027\uff0c\u6709\u52a9\u4e8e\u7406\u89e3\u53c2\u6570\u7684\u7528\u9014\u3002\u907f\u514d\u4f7f\u7528\u8fc7\u4e8e\u7b80\u5355\u6216\u542b\u7cca\u4e0d\u6e05\u7684\u53c2\u6570\u540d\u3002<\/p>\n
    3. \u65b9\u6cd5\u7684\u5355\u4e00\u804c\u8d23\u539f\u5219\uff1a<\/strong> \u4e00\u4e2a\u65b9\u6cd5\u5e94\u8be5\u5b8c\u6210\u5355\u4e00\u7684\u529f\u80fd\u3002\u5982\u679c\u4e00\u4e2a\u65b9\u6cd5\u5305\u542b\u591a\u4e2a\u4e0d\u76f8\u5173\u7684\u64cd\u4f5c\uff0c\u4f1a\u964d\u4f4e\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u7ef4\u62a4\u6027\u3002\u5c06\u65b9\u6cd5\u62c6\u5206\u6210\u591a\u4e2a\u5c0f\u65b9\u6cd5\uff0c\u6bcf\u4e2a\u65b9\u6cd5\u6267\u884c\u4e00\u4e2a\u7279\u5b9a\u7684\u4efb\u52a1\u3002<\/p>\n
    4. \u907f\u514d\u8fc7\u591a\u7684\u53c2\u6570\uff1a<\/strong> \u65b9\u6cd5\u7684\u53c2\u6570\u5217\u8868\u4e0d\u5b9c\u8fc7\u957f\uff0c\u8fc7\u591a\u7684\u53c2\u6570\u4f1a\u4f7f\u65b9\u6cd5\u96be\u4ee5\u7406\u89e3\u548c\u7ef4\u62a4\u3002\u5982\u679c\u4e00\u4e2a\u65b9\u6cd5\u9700\u8981\u5927\u91cf\u53c2\u6570\uff0c\u8003\u8651\u5c06\u76f8\u5173\u53c2\u6570\u5c01\u88c5\u6210\u5bf9\u8c61\u6765\u7b80\u5316\u65b9\u6cd5\u7684\u8c03\u7528\u3002<\/p>\n
    5. \u65b9\u6cd5\u7684\u53ef\u89c1\u6027\uff1a<\/strong> \u6839\u636e\u9700\u8981\uff0c\u9009\u62e9\u9002\u5f53\u7684\u65b9\u6cd5\u53ef\u89c1\u6027\u4fee\u9970\u7b26\uff08public\u3001private\u3001protected \u6216\u9ed8\u8ba4\uff09\u3002\u4e0d\u8981\u8fc7\u5ea6\u66b4\u9732\u7c7b\u7684\u5185\u90e8\u5b9e\u73b0\u7ec6\u8282\u3002<\/p>\n
    6. \u5f02\u5e38\u5904\u7406\uff1a <\/strong>\u5728\u65b9\u6cd5\u5185\u90e8\u5904\u7406\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38\uff0c\u4ee5\u786e\u4fdd\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002\u53ef\u4ee5\u4f7f\u7528try-catch\u5757\u6765\u6355\u83b7\u5f02\u5e38\uff0c\u4e5f\u53ef\u4ee5\u5728\u65b9\u6cd5\u7b7e\u540d\u4e2d\u4f7f\u7528throws\u5173\u952e\u5b57\u58f0\u660e\u65b9\u6cd5\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38\u3002<\/p>\n
    7. \u907f\u514d\u786c\u7f16\u7801\uff1a <\/strong>\u907f\u514d\u5728\u65b9\u6cd5\u4e2d\u786c\u7f16\u7801\uff08\u76f4\u63a5\u5199\u5165\uff09\u7279\u5b9a\u7684\u6570\u503c\u6216\u5b57\u7b26\u4e32\u3002\u4f7f\u7528\u5e38\u91cf\u6216\u914d\u7f6e\u6587\u4ef6\u6765\u5b58\u50a8\u8fd9\u4e9b\u503c\uff0c\u4ee5\u4fbf\u5728\u9700\u8981\u65f6\u8fdb\u884c\u66f4\u6539\u3002<\/p>\n
    8. \u65b9\u6cd5\u7684\u6ce8\u91ca\uff1a <\/strong>\u5728\u65b9\u6cd5\u5185\u90e8\u4f7f\u7528\u6ce8\u91ca\u6765\u89e3\u91ca\u65b9\u6cd5\u7684\u529f\u80fd\u3001\u53c2\u6570\u7684\u542b\u4e49\u4ee5\u53ca\u8fd4\u56de\u503c\u7684\u542b\u4e49\u3002\u826f\u597d\u7684\u6ce8\u91ca\u80fd\u591f\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u7ef4\u62a4\u6027\u3002<\/p>\n
    9. \u6d4b\u8bd5\u65b9\u6cd5\uff1a<\/strong> \u5728\u7f16\u5199\u65b9\u6cd5\u540e\uff0c\u53ca\u65f6\u8fdb\u884c\u6d4b\u8bd5\uff0c\u786e\u4fdd\u65b9\u6cd5\u6309\u9884\u671f\u5de5\u4f5c\u3002\u53ef\u4ee5\u4f7f\u7528\u5355\u5143\u6d4b\u8bd5\u6846\u67b6\u6765\u81ea\u52a8\u5316\u6d4b\u8bd5\u3002<\/p>\n
    10. \u9002\u5ea6\u91cd\u7528\uff1a<\/strong> \u4e0d\u8981\u8fc7\u5ea6\u91cd\u7528\u65b9\u6cd5\u3002\u6709\u65f6\u5019\uff0c\u4e3a\u4e86\u91cd\u7528\u65b9\u6cd5\u800c\u5f3a\u884c\u8ba9\u4e00\u4e2a\u65b9\u6cd5\u5904\u7406\u591a\u79cd\u60c5\u51b5\u4f1a\u5bfc\u81f4\u65b9\u6cd5\u53d8\u5f97\u590d\u6742\u548c\u96be\u4ee5\u7406\u89e3\u3002\u6839\u636e\u9700\u8981\u521b\u5efa\u65b0\u7684\u65b9\u6cd5\u6765\u5904\u7406\u4e0d\u540c\u7684\u60c5\u51b5\u3002<\/p>\n
    11. \u6ce8\u610f\u6027\u80fd\uff1a <\/strong>\u8003\u8651\u65b9\u6cd5\u7684\u6027\u80fd\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8ba1\u7b97\u548c\u5185\u5b58\u6d88\u8017\u3002\u6839\u636e\u5177\u4f53\u60c5\u51b5\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7ed3\u6784\u548c\u7b97\u6cd5\u3002<\/p>\n
    12. \u53ca\u65f6\u5173\u95ed\u8d44\u6e90\uff1a<\/strong> \u5982\u679c\u65b9\u6cd5\u6d89\u53ca\u5230\u6587\u4ef6\u3001\u6570\u636e\u5e93\u8fde\u63a5\u7b49\u9700\u8981\u624b\u52a8\u5173\u95ed\u7684\u8d44\u6e90\uff0c\u786e\u4fdd\u5728\u65b9\u6cd5\u6267\u884c\u5b8c\u6bd5\u540e\u53ca\u65f6\u5173\u95ed\u8fd9\u4e9b\u8d44\u6e90\uff0c\u4ee5\u9632\u8d44\u6e90\u6cc4\u6f0f\u3002<\/p>\n
    13. \u6301\u7eed\u5b66\u4e60\u548c\u6539\u8fdb\uff1a <\/strong>\u4e0d\u65ad\u5b66\u4e60\u548c\u6539\u8fdb\u65b9\u6cd5\u7684\u7f16\u5199\u6280\u5de7\u3002\u9605\u8bfb\u4f18\u79c0\u7684\u4ee3\u7801\u3001\u5b66\u4e60\u8bbe\u8ba1\u6a21\u5f0f\u548c\u6700\u4f73\u5b9e\u8df5\uff0c\u63d0\u9ad8\u81ea\u5df1\u7684\u7f16\u7a0b\u6c34\u5e73\u3002<\/p>\n
    \u4e03\u3001\u4f7f\u7528\u6ce8\u610f\u4e8b\u9879<\/h2>\n
    1. \u7406\u89e3\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\uff1a <\/strong>\u5728\u8c03\u7528\u65b9\u6cd5\u4e4b\u524d\uff0c\u786e\u4fdd\u7406\u89e3\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u4ee5\u53ca\u5b83\u5c06\u8fd4\u56de\u7684\u6570\u636e\u3002\u8fd9\u6709\u52a9\u4e8e\u4f60\u6b63\u786e\u4f7f\u7528\u65b9\u6cd5\u7684\u7ed3\u679c\u3002<\/p>\n
    2. \u68c0\u67e5\u7a7a\u5f15\u7528\uff1a <\/strong>\u5728\u4f7f\u7528\u65b9\u6cd5\u8fd4\u56de\u7684\u5bf9\u8c61\u6216\u503c\u4e4b\u524d\uff0c\u59cb\u7ec8\u68c0\u67e5\u5b83\u4eec\u662f\u5426\u4e3anull\u3002\u7a7a\u5f15\u7528\u53ef\u80fd\u5bfc\u81f4NullPointerException\u5f02\u5e38\u3002<\/p>\n
    3. \u907f\u514d\u6b7b\u5faa\u73af\uff1a<\/strong> \u5728\u65b9\u6cd5\u5185\u90e8\u4f7f\u7528\u5faa\u73af\u65f6\uff0c\u786e\u4fdd\u6709\u7ec8\u6b62\u6761\u4ef6\uff0c\u4ee5\u907f\u514d\u8fdb\u5165\u6b7b\u5faa\u73af\uff0c\u5bfc\u81f4\u7a0b\u5e8f\u65e0\u6cd5\u6b63\u5e38\u7ed3\u675f\u3002<\/p>\n
    4. \u4e0d\u8981\u4fee\u6539\u65b9\u6cd5\u53c2\u6570\uff1a <\/strong>\u5728\u65b9\u6cd5\u5185\u90e8\u4e0d\u8981\u4fee\u6539\u4f20\u9012\u7ed9\u65b9\u6cd5\u7684\u53c2\u6570\u503c\uff0c\u9664\u975e\u4f60\u6709\u660e\u786e\u7684\u7406\u7531\u548c\u5fc5\u8981\u6027\u3002\u53c2\u6570\u901a\u5e38\u5e94\u8be5\u88ab\u89c6\u4e3a\u53ea\u8bfb\u3002<\/p>\n
    5. \u5408\u7406\u4f7f\u7528\u9012\u5f52\uff1a<\/strong> \u5982\u679c\u4f7f\u7528\u9012\u5f52\u65b9\u6cd5\uff0c\u8bf7\u786e\u4fdd\u6709\u7ec8\u6b62\u6761\u4ef6\uff0c\u5e76\u4e14\u9012\u5f52\u6df1\u5ea6\u4e0d\u4f1a\u8fc7\u5927\uff0c\u4ee5\u9632\u6b62\u6808\u6ea2\u51fa\u3002<\/p>\n
    6. \u6e05\u9664\u8d44\u6e90\uff1a <\/strong>\u5982\u679c\u65b9\u6cd5\u6d89\u53ca\u5230\u9700\u8981\u624b\u52a8\u5173\u95ed\u7684\u8d44\u6e90\uff0c\u5982\u6587\u4ef6\u6216\u6570\u636e\u5e93\u8fde\u63a5\uff0c\u8bf7\u5728\u4f7f\u7528\u540e\u53ca\u65f6\u5173\u95ed\u8fd9\u4e9b\u8d44\u6e90\uff0c\u4ee5\u9632\u6b62\u8d44\u6e90\u6cc4\u6f0f\u3002<\/p>\n
    7. \u5f02\u5e38\u5904\u7406\u8981\u6070\u5f53\uff1a<\/strong> \u5f53\u65b9\u6cd5\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\u65f6\uff0c\u786e\u4fdd\u5728\u65b9\u6cd5\u5185\u90e8\u8fdb\u884c\u9002\u5f53\u7684\u5f02\u5e38\u5904\u7406\u6216\u5c06\u5f02\u5e38\u4f20\u64ad\u7ed9\u8c03\u7528\u8005\u3002<\/p>\n
    8. \u907f\u514d\u65b9\u6cd5\u8fc7\u4e8e\u5e9e\u5927\uff1a <\/strong>\u907f\u514d\u7f16\u5199\u8fc7\u4e8e\u5e9e\u5927\u7684\u65b9\u6cd5\u3002\u957f\u65b9\u6cd5\u4e0d\u4ec5\u96be\u4ee5\u7406\u89e3\uff0c\u8fd8\u96be\u4ee5\u6d4b\u8bd5\u548c\u7ef4\u62a4\u3002\u5c06\u65b9\u6cd5\u62c6\u5206\u6210\u5c0f\u7684\u3001\u529f\u80fd\u660e\u786e\u7684\u90e8\u5206\u3002<\/p>\n
    9. \u6ce8\u91cd\u6027\u80fd\uff1a <\/strong>\u5728\u5bf9\u6027\u80fd\u8981\u6c42\u8f83\u9ad8\u7684\u4ee3\u7801\u4e2d\uff0c\u8981\u7279\u522b\u6ce8\u610f\u65b9\u6cd5\u7684\u6267\u884c\u6548\u7387\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6027\u80fd\u74f6\u9888\u3002<\/p>\n
    10. \u5145\u5206\u6d4b\u8bd5\uff1a<\/strong> \u5728\u7f16\u5199\u65b9\u6cd5\u540e\uff0c\u52a1\u5fc5\u8fdb\u884c\u5145\u5206\u7684\u6d4b\u8bd5\uff0c\u5305\u62ec\u6b63\u5e38\u60c5\u51b5\u548c\u5f02\u5e38\u60c5\u51b5\u3002\u5355\u5143\u6d4b\u8bd5\u548c\u96c6\u6210\u6d4b\u8bd5\u90fd\u53ef\u4ee5\u5e2e\u52a9\u4f60\u53d1\u73b0\u6f5c\u5728\u7684\u95ee\u9898\u3002<\/p>\n
    \u65b9\u6cd5\u662fJava\u7f16\u7a0b\u7684\u6838\u5fc3\u6982\u5ff5\u4e4b\u4e00\uff0c\u5b83\u5141\u8bb8\u4f60\u5c06\u4ee3\u7801\u7ec4\u7ec7\u6210\u53ef\u91cd\u7528\u7684\u5757\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8bfb\u6027\u3002
    \n\u901a\u8fc7\u7406\u89e3\u65b9\u6cd5\u7684\u5b9a\u4e49\u3001\u8c03\u7528\u3001\u53c2\u6570\u3001\u8fd4\u56de\u503c\u3001\u5f02\u5e38\u5904\u7406\u4ee5\u53ca\u65b9\u6cd5\u7684\u6700\u4f73\u5b9e\u8df5\u548c\u6ce8\u610f\u4e8b\u9879\uff0c\u4f60\u53ef\u4ee5\u66f4\u597d\u5730\u7f16\u5199Java\u7a0b\u5e8f\uff0c\u51cf\u5c11\u9519\u8bef\u5e76\u63d0\u9ad8\u4ee3\u7801\u8d28\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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