exceptiondemo1.java

这个是JAVA程序基础书上第五章接口实现的代码

import java.io.*;
public class ExceptionDemo1{
   public static void main(String[] args){
		try{
			ExceptionDemo1 ed = new ExceptionDemo1();
			ed.Demo(args);
		}
		catch(MyException4 e3){
			System.out.println("MyException4被捕获！");
		}
		catch(MyException2 e4){
			System.out.println("MyException2被捕获！");
		}		
		finally{
			System.out.println("finally语句被执行！");
		}
	}
	public void Demo(String[] args) throws MyException2,MyException4{
		try{
			int len = args.length;
			System.out.println("\n Len = " + len);
			int b = 42/len;
			int[] c = {1};
			c[42]=99;
		}
		catch(ArithmeticException e1){
			throw new MyException2();//抛出自定义异常类的一个对象
		}
		catch(IndexOutOfBoundsException e2){
			throw new MyException4();//抛出自定义异常类的一个对象
		}
		catch(Exception e5){
			System.out.println("发生了异常！" + e5);
		}
	}
}