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PrintWriter println(boolean) method in Java with Examples

  • Last Updated : 31 Jan, 2019

The println(boolean) method of PrintWriter Class in Java is used to print the specified boolean value on the stream and then break the line. This boolean value is taken as a parameter.

Syntax:

public void println(boolean booleanValue)

Parameters: This method accepts a mandatory parameter booleanValue which is the boolean value to be written on the stream.

Return Value: This method do not returns any value.

Below methods illustrates the working of println(boolean) method:



Program 1:




// Java program to demonstrate
// PrintWriter println(boolean) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintWriter instance
            PrintWriter printr
                = new PrintWriter(System.out);
  
            // Print the boolean value 'true'
            // to this stream using println() method
            // This will put the booleanValue in the
            // stream till it is printed on the console
            printr.println(true);
  
            printr.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}
Output:
true

Program 2:




// Java program to demonstrate
// PrintWriter println(boolean) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintWriter instance
            PrintWriter printr
                = new PrintWriter(System.out);
  
            // Print the boolean value 'false'
            // to this stream using println() method
            // This will put the booleanValue in the
            // stream till it is printed on the console
            printr.println(false);
  
            printr.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}
Output:
false

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