实训二:文件的读出与读入及功能的初步实现

import java.io.*;

public class test2
{
public static void main(String args[])
{
try
{



                int[]   array   =   new   int[5];
                System.out.println( "Please   enter   5   numbers: ");
                for(int   i   =   0;i   <   array.length;i++)
                {
                BufferedReader   stdin=new   BufferedReader(new   InputStreamReader(System.in));
                array[i]   =   Integer.parseInt(stdin.readLine());
                }  





RandomAccessFile rf=new RandomAccessFile("Data.out","rw");

for(int i=0;i<5;i++)
rf.writeInt(array[i]);
rf.close();





rf=new RandomAccessFile("Data.out","r");
long fl=rf.length();
int No=0;
while(rf.getFilePointer()<fl)
{
System.out.println("Value"+No+": "+rf.readInt());
No++;
}
rf.close();





                 int sum =0;
                for(int   i   =   0;i   <   array.length;i++)
                 {
                   sum=sum+array[i];
                }
                        System.out.print(sum);
                  }



catch(IOException e)
{
System.out.println(e);
}
}
}