Java.util.Formatter.flush() Method

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Description

The java.util.Formatter.flush() method flushes this formatter. If the destination implements the Flushable interface, its flush method will be invoked. Flushing a formatter writes any buffered output in the destination to the underlying stream.

Declaration

Following is the declaration for java.util.Formatter.flush() method

public void flush()

Parameters

  • NA

Return Value

This method does not return a value.

Exception

  • FormatterClosedException -- If this formatter has been closed by invoking its close() method

Example

The following example shows the usage of java.util.Formatter.flush() method.

package com.tutorialspoint;

import java.util.Formatter;
import java.util.Locale;

public class FormatterDemo {

   public static void main(String[] args) {

      // create a new formatter
      StringBuffer buffer = new StringBuffer();
      Formatter formatter = new Formatter(buffer, Locale.US);

      // format a new string
      String name = "World";
      formatter.format("Hello %s !", name);

      // print the formatted string
      System.out.println("" + formatter);

      // flush the formatter. Here it does nothing.
      formatter.flush();
      System.out.println("Formatter Flushed.");
   }
}

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

Hello World !
Formatter Flushed.



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