Console flush() method in Java with Examples
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:
import java.io.*;
public class GFG {
public static void main(String[] args)
{
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);
cnsl.flush();
}
}
|
Output:
Program 2:
import java.io.*;
public class GFG {
public static void main(String[] args)
{
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);
cnsl.flush();
}
}
|
Output:
References:
https://docs.oracle.com/javase/10/docs/api/java/io/Console.html#flush()
Last Updated :
12 Jun, 2020
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