Write double to a file using DataOutputStream

/*
  Write double to a file using DataOutputStream
  This Java example shows how to write a Java double primitive value to a file using
  writeDouble method of Java DataOutputStream class.
*/
 
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
 
public class WriteDoubleToFile {
 
  public static void main(String[] args) {
 
    String strFilePath = "C://FileIO//WriteDouble.txt";
 
    try
    {
      //create FileOutputStream object
      FileOutputStream fos = new FileOutputStream(strFilePath);
 
      /*
       * To create DataOutputStream object from FileOutputStream use,
       * DataOutputStream(OutputStream os) constructor.
       *
       */
 
       DataOutputStream dos = new DataOutputStream(fos);
 
       double d = 165;
 
       /*
        * To write a double value to a file, use
        * void writeDouble(double d) method of Java DataOutputStream class.
        *
        * This method writes specified double to output stream as 8 bytes value.
        * Please note that the double value is first converted to long using
        * Double.doubleToLongBits method and then long is written to
        * underlying output stream.
        */
 
        dos.writeDouble(d);
 
        /*
         * To close DataOutputStream use,
         * void close() method.
         *
         */
 
         dos.close();
 
    }
    catch (IOException e)
    {
      System.out.println("IOException : " + e);
    }
 
  }
}