Java中捕获和抛出异常try/catch/finally

package com.exception;

public class Test {

    public static void main(String[] args) {
        int a=1;
        int b=0;

        try{
            new Test().a();
        }catch (Error e){
            System.out.println("死循环");
        }finally {     //finally作为善后工作必输出
            System.out.println("finally");
        }

        System.out.println("==================");

    //快捷键command+option+T
        try {
            System.out.println(a/b);
        } catch (Exception e) {
            System.out.println("程序出现异常，变量b不能为0");
        } finally {
            System.out.println("finally");
        }

        System.out.println("==================");


        try {
            new Test().b();
        } catch (Exception e) {
            System.out.println("Exception");
        } catch (Error e){
            System.out.println("Error");
        } catch (Throwable e){
            System.out.println("Throwable");  //Throwable覆盖面最大,要放最后
        } finally {
            System.out.println("finally");
        }

    }

    public void a(){
        b();
    }

    public void b(){
        a();
    }

}

输出：

死循环
finally
==================
程序出现异常，变量b不能为0
finally
==================
Error
finally

 

try/catch/finally快捷键生成：

　　Mac：command+option+T

　　Windows：ctrl+alt+T