Java中try{return} finally中return 和finally的执行顺序

xiaoxiao2021-02-28  86

1. finally语句在return语句执行之后return返回之前执行的。

public class FinallyTest1 { public static void main(String[] args) { System.out.println(test1()); } public static int test1() { int b = 20; try { System.out.println("try block"); return b += 80; } catch (Exception e) { System.out.println("catch block"); } finally { System.out.println("finally block"); if (b > 25) { System.out.println("b>25, b = " + b); } } return b; } }

运行结果是:

try block finally block b>25, b = 100 100

说明return语句已经执行了再去执行finally语句,不过并没有直接返回,而是等finally语句执行完了再返回结果。

如果觉得这个例子还不足以说明这个情况的话,下面再加个例子加强证明结论:

public class FinallyTest1 { public static void main(String[] args) { System.out.println(test11()); } public static String test11() { try { System.out.println("try block"); return test12(); } finally { System.out.println("finally block"); } } public static String test12() { System.out.println("return statement"); return "after return"; } }

运行结果为:

try block return statement finally block after return

说明try中的return语句先执行了但并没有立即返回,等到finally执行结束后再返回。

原文:http://www.cnblogs.com/lanxuezaipiao/p/3440471.html

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