java中异常处理finally代码块的处理

package cn.javass.hello.servletimpl.vo;
import java.io.*;
public class TestFinally
 
{
	public static void main(String[] args) 
	{
      FileInputStream fs=null;
	  try{
	      fs=new FileInputStream("a.txt");
	  }catch(IOException e){
	     System.out.println(e.getLocalizedMessage());
		System.out.println(e.getMessage());
		System.out.println(e.toString());
		e.printStackTrace();
		return ;
		//System.exit(1);
	  }finally{
	     if(fs!=null){
			 try{
		   fs.close();
			 }catch(Exception e){
			   e.printStackTrace();
			 }
		 }
        System.out.println("程序始终要执行finally里的代码！");
	  }

		System.out.println("Hello World!");
	}
}