Java ObjectOutputStream .writeDouble (double val)

Syntax

ObjectOutputStream.writeDouble(double val) has the following syntax.

public void writeDouble(double val)   throws IOException

Example

In the following code shows how to use ObjectOutputStream.writeDouble(double val) method.


import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Arrays;
//  www  . jav  a 2 s  .c  om
public class Main {
  public static void main(String[] args) throws Exception {

    ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(
        new FileOutputStream("file.data")));
    out.writeDouble(1.234);
    out.close();

    ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(
        new FileInputStream("file.data")));

    byte[] byteArray = new byte[10];
    in.read(byteArray);
    System.out.println(Arrays.toString(byteArray));
    in.close();
  }
}