Java.io.PrintStream.flush() Method

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Description

The java.io.PrintStream.flush() method flushes the stream. This is done by writing any buffered output bytes to the underlying output stream and then flushing that stream.

Declaration

Following is the declaration for java.io.PrintStream.flush() method.

public void flush()

Parameters

NA

Return Value

This method does not return a value.

Exception

NA

Example

The following example shows the usage of java.io.PrintStream.flush() method.

package com.tutorialspoint;

import java.io.*;

public class PrintStreamDemo {
   public static void main(String[] args) {
      String s = "Hello World.";

      // create printstream object
      PrintStream ps = new PrintStream(System.out);

      // print our string
      ps.print(s);

      // flush the stream to see the results
      ps.flush();

      // print new string
      ps.println();
      ps.print("This is an example");

      // flush to see new string
      ps.flush();
   }
}

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

Hello World.
This is an example