java 第48节 Java中的异常声明

package com.java1995;
/**
 * 异常的声明:throws
 * @author Administrator
 *
 */
public class Test {
    
    public static void main(String[] args) {
        System.out.println("main方法开始执行");
        Test t=new Test();
//        try{
//            t.test1();
//        }catch(ArithmeticException e){
//            System.out.println(e.getMessage());
//        };
        
//        t.test2();
        t.test4();
        
        System.out.println("main方法结束");
    }
    
    public void test1() throws ArithmeticException{
        
        System.out.println("test1()开始执行");
        System.out.println(1/0);
        System.out.println("test1()执行完毕");
    }
    
    public void test2() throws ArithmeticException{
        test1();
    }



    public void test3() throws ArithmeticException{
        test2();
    }
    public void test4(){
        
        try{
            test3();
        }catch(ArithmeticException e){
            System.out.println(e.getMessage());
        }
    }
}