java 异常

package com.goodboy;
import java.io.*;
public class TestException {
    public static void main(String[] args){
        try{
            int a[] = new int[2];
            System.out.println(a[3]);
        }catch(Exception e){
            System.out.println(e);
        }
        System.out.println("out of block");
    }
}