Java tutorial
import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; public class Main { public static void main(String[] args) throws IOException { int[] i = { 123, 234, 454, 567, 789 }; FileOutputStream fos = new FileOutputStream("c:\\test.txt"); DataOutputStream dos = new DataOutputStream(fos); for (int j : i) { dos.writeInt(j); } dos.flush(); InputStream is = new FileInputStream("c:\\test.txt"); DataInputStream dis = new DataInputStream(is); while (dis.available() > 0) { int k = dis.readInt(); System.out.print(k); } } }