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);
}
}
}