Java I/O How to - Flush output stream after writing byte array/String

Question

We would like to know how to flush output stream after writing byte array/String.

Answer

//  w  ww.  java2  s. c  o m
import java.io.DataOutputStream;
import java.io.FileOutputStream;

public class Main {

  public static void main(String[] args) throws Exception {
    FileOutputStream fos = new FileOutputStream("C:/WriteByte.txt");
    DataOutputStream dos = new DataOutputStream(fos);
    dos.writeBytes("this is a test");

    dos.flush();
    dos.close();
  }
}