例11.txt

这是一本java基础教程 对新手上路有很大帮助

import java.io.*;
public class Example9_11{
    public static void main(String args[]){
        RandomAccessFile inAndOut=null;
        int data[]={20,30,40,50,60};
        try{  inAndOut=new RandomAccessFile("a.dat","rw");
        }
        catch(Exception e){}
        try{   for(int i=0;i<data.length;i++)
                  inAndOut.writeInt(data[i]);
              for(long i=data.length-1;i>=0;i--){
     inAndOut.seek(i*4);      
                  System.out.printf("\t%d",inAndOut.readInt());
              }
              inAndOut.close();
         }
         catch(IOException e){} 
    }
}