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  • trycatch放在for循环的里面还是外面好

    try放在for循环里面和外面的区别是什么呢?先看看下面的代码的区别:

    public class Test {
        public void test1(){
            for (int count = 0; count < 6; count++) {
                try {
                    int x;
                    if (count == 3)
                        x = 1 / 0;
                    else{
                        x = count;
                        System.out.println(x);
                    }

                } catch(Exception e){
                    System.out.println("异常");
                }
            }
        }
        public void test2(){
            try {
                for (int count = 0; count < 6; count++) {
                    int x;
                    if (count == 3)
                        x = 1 / 0;
                    else{
                        x = count;
                        System.out.println(x);
                    }
                }   
            } catch (Exception e) {
                System.out.println("异常");
            }
           
        }

        public static void main(String[] args) throws Exception {
            Test te = new Test();
            te.test1();
            System.out.println("------------------------");
            te.test2();
        }
    }

    结果:

    0
    1
    2
    异常
    4
    5
    ------------------------
    0
    1
    2
    异常

    总结:try放在for循环的里面所有的for循环都会执行,当遇到异常时,抛出异常继续执行;放在外面,当遇到异常时,抛出异常,后面的循环就会终止,并不会执行。

    对于放到里面还是外面,有时候还看自己的选择,一般建议放到里面比较好。

    
    
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  • 原文地址:https://www.cnblogs.com/jialin1402/p/7380033.html
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