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异常

时间:2023-02-28 22:57:09浏览次数:23  
标签:int System catch println 异常 public out

异常

package com.andy.base.exception;

public class Test {
    public static void main(String[] args) {

        try {
            new Test().test(1,0);
        } catch (ArithmeticException e) {
            e.printStackTrace();
        }


/*
        int a = 1;
        int b = 0;

        //假设要捕获多个异常,从小到大!

        try{//try监控区域


        }catch (Error e){//catch(想要捕获的异常类型!)  捕获异常
            System.out.println("Error");
        }catch (Exception e){
            System.out.println("Exception");
        }catch (Throwable t){
            System.out.println("Throwable");
        } finally {  //处理善后工作
            //可以不要finally 。 假设IO、资源、关闭!
            System.out.println("finally");
        }
        */

    }

    //假设这方法中,处理不了这个异常。方法上抛出异常
    public void test(int a,int b) throws ArithmeticException{
        if(b==0){//throw    throws
            throw new ArithmeticException();//主动抛出异常,一般在方法里面使用
        }

        //System.out.println(a/b);

    }

}

package com.andy.base.exception;

public class Test2 {
    public static void main(String[] args) {

        int a = 1;
        int b = 0;

        //System.out.println(a/b);   快捷键:ctrl+alt+t
        try {
            System.out.println(a/b);
        } catch (Exception e) {
            e.printStackTrace();//打印错误栈信息
        } finally {

        }

    }
}

标签:int,System,catch,println,异常,public,out
From: https://www.cnblogs.com/zhongjianYuan/p/17166390.html

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