Java.io.ObjectOutputStream.writeBoolean() Method

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Description

The java.io.ObjectOutputStream.writeBoolean(boolean val) method writes a boolean.

Declaration

Following is the declaration for java.io.ObjectOutputStream.writeBoolean() method

public void writeBoolean(boolean val)

Parameters

  • val -- the boolean to be written

  • \

Return Value

This method does not return a value.

Exception

  • IOException -- if I/O errors occur while writing to the underlying stream

Example

The following example shows the usage of java.io.ObjectOutputStream.writeBoolean() method.

package com.tutorialspoint;

import java.io.*;

public class ObjectOutputStreamDemo {

   public static void main(String[] args) {

      boolean b = true;
      try {

         // create a new file with an ObjectOutputStream
         FileOutputStream out = new FileOutputStream("test.txt");
         ObjectOutputStream oout = new ObjectOutputStream(out);

         // write something in the file
         oout.writeBoolean(b);
         oout.writeBoolean(false);

         // close the stream
         oout.close();

         // create an ObjectInputStream for the file we created before
         ObjectInputStream ois =
                 new ObjectInputStream(new FileInputStream("test.txt"));

         // read and print what we wrote before
         System.out.println("" + ois.readBoolean());
         System.out.println("" + ois.readBoolean());


      } catch (Exception ex) {
         ex.printStackTrace();
      }

   }
}

Let us compile and run the above program, this will produce the following result:

true
false



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