Read int from DataInputStream : DataInputStream « File « Java Tutorial

1. Java Tutorial
2. File
3. DataInputStream

import java.io.DataInputStream;
import java.io.EOFException;
import java.io.FileInputStream;
import java.io.IOException;

public class MainClass {

  public static void main(String[] args) throws Exception {

    DataInputStream din = null;
    try {
      FileInputStream fin = new FileInputStream("myfile.dat");

      din = new DataInputStream(fin);
      while (true) {
        int theNumber = din.readInt();
        System.out.println(theNumber);
      }
    } catch (EOFException ex) {
      din.close();
    } catch (IOException ex) {
      System.err.println(ex);
    }
  }
}