Console writer() method in Java with Examples

Console flush() method in Java with Examples

Last Updated : 12 Jun, 2020

The flush() method of Console class in Java is used to flush the console and to force any buffered output to be written immediately. Syntax:

public void flush()

Specified By: This method is specified by flush() method of Flushable interface. Parameters: This method does not accept any parameter. Return value: This method does not return any value. Exceptions: This method does not any throw exception. Note: System.console() returns null in an online IDE. Below programs illustrate flush() method in Console class in IO package: Program 1:

Java

// Java program to illustrate
// Console flush() method

import java.io.*;

public class GFG {
    public static void main(String[] args)
    {
        // Create the console object
        Console cnsl
            = System.console();

        if (cnsl == null) {
            System.out.println(
                "No console available");
            return;
        }
        String str = cnsl.readLine(
            "Enter string : ");

        System.out.println(
            "You entered : " + str);

        // Revoke flush() method
        cnsl.flush();
    }
}

Output:

Program 2:

Java

// Java program to illustrate
// Console flush() method

import java.io.*;

public class GFG {
    public static void main(String[] args)
    {
        // Create the console object
        Console cnsl
            = System.console();

        if (cnsl == null) {
            System.out.println(
                "No console available");
            return;
        }
        String str = cnsl.readLine(
            "Enter string : ");

        System.out.println(
            "You entered : " + str);

        // Revoke flush() method
        cnsl.flush();
    }
}

Output:

References: https://docs.oracle.com/javase/10/docs/api/java/io/Console.html#flush()

Console writer() method in Java with Examples

P

pp_pankaj

Improve

Article Tags :

Practice Tags :

Java

Similar Reads

Console reader() method in Java with Examples

The reader() method of Console class in Java is used to retrieve the unique Reader object which is associated with the console. This reader() method is generally used by sophisticated applications. Simple applications that require only line oriented reading, normally use readLine() method instead of

Console writer() method in Java with Examples

The writer() method of Console class in Java is used to retrieves the unique PrintWriter object which is associated with the console. Syntax: public PrintWriter writer() Parameters: This method does not accept any parameter. Return value: This method returns the PrintWriter which is associated with

Console readLine() method in Java with Examples

The readLine() method of Console class in Java is of two types: 1. The readLine() method of Console class in Java is used to read a single line of text from the console. Syntax: public String readLine() Parameters: This method does not accept any parameter. Return value: This method returns the stri

Collections fill() method in Java with Examples

The fill() method of java.util.Collections class is used to replace all of the elements of the specified list with the specified element. This method runs in linear time. Syntax: public static void fill(List list, T obj) Parameters: This method takes following argument as parameter list - the list t

Double compare() Method in Java with Examples

The compare() method of Double Class is a built-in method in Java that compares the two specified double values. The sign of the integer value returned is the same as that of the integer that would be returned by the function call. Syntax: public static int compare(double d1, double d2) Parameters:

Writer close() method in Java with Examples

The close() method of Writer Class in Java is used to close the writer. Closing a writer deallocates any value in it or any resources associated with it. The Writer instance once closed won't work. Also a Writer instance once closed cannot be closed again. Syntax: public void close() Parameters: Thi