异常处理动手动脑

结果：

ArrayIndexOutOfBoundsException/内层try-catch

发生ArithmeticException

结果：

ArrayIndexOutOfBoundsException/外层try-catch

不一定，程序可能会在finally语句前结束。

源代码：

import java.util.Scanner;
public class Test 
{
    public static void main(String[] args)	
    {
    	Scanner input=new Scanner(System.in);
    	int score;
    	int receiveScore;
    	System.out.println("输入一个整数：");

    		if(input.hasNextInt())
    			
                {
    			    receiveScore=input.nextInt();
    			    if(receiveScore<=100)
    			    {
    			    	score=receiveScore;   			    	
    			    }
    			    else
    			    {
    			    	System.out.println("错误：输入分数大于100");
    			    	score=101;
    			    }
    			       
                }
    	    else   	
    	    {
    	    	 System.out.println("错误:输入的是非整数"); 
    	    	 score=101;
    	    }
    		     	
    		
    	
    	if(score<=59)
    	{
    		System.out.println("不及格");
    	}
    	else if(score<=69)
    	{
    		System.out.println("及格");
    	}
    	else if(score<=79)
    	{
    		System.out.println("中");
    	}
    	else if(score<=89)
    	{
    		System.out.println("良");
    	}
    	else if(score<=100)
    	{
    		System.out.println("优");
    	}
    }
}

运行结果：