Writer flush() method in Java with Examples – GeeksforGeeks

The flush() method of Writer Class in Java is used to flush the writer. By flushing the writer, it means to clear the writer of any element that may be or maybe not inside the writer. It neither accepts any parameter nor returns any value.

Syntax:

public void flush()

Parameters: This method do not accepts any parameter.

Return Value: This method do not returns any value. It just flushes the writer.

Below methods illustrates the working of flush() method:

Program 1:




  

import java.io.*;

  

class GFG {

    public static void main(String[] args)

    {

  

        

        String str = "GeeksForGeeks";

  

        try {

  

            

            Writer writer

                = new PrintWriter(System.out);

  

            

            

            

            writer.write(str);

  

            

            

            writer.flush();

        }

        catch (Exception e) {

            System.out.println(e);

        }

    }

}



Output:

GeeksForGeeks

Program 2:




  

import java.io.*;

  

class GFG {

    public static void main(String[] args)

    {

  

        try {

  

            

            Writer writer

                = new PrintWriter(System.out);

  

            

            

            

            writer.write(65);

  

            

            

            writer.flush();

        }

        catch (Exception e) {

            System.out.println(e);

        }

    }

}



Output:

A

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