PrintStream flush() method in Java with Examples

PrintWriter flush() method in Java with Examples

Last Updated : 29 Jan, 2019

The flush() method of PrintWriter Class in Java is used to flush the stream. By flushing the stream, it means to clear the stream of any element that may be or maybe not inside the stream. 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 Stream. Below methods illustrates the working of flush() method: Program 1:

Java

// Java program to demonstrate
// PrintWriter flush() method

import java.io.*;

class GFG {
    public static void main(String[] args)
    {

        // The string to be written in the Writer
        String str = "GeeksForGeeks";

        try {

            // Create a PrintWriter instance
            PrintWriter writer
                = new PrintWriter(System.out);

            // Write the above string to this writer
            // This will put the string in the stream
            // till it is printed on the console
            writer.write(str);

            // Now clear the stream
            // using flush() method
            writer.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

GeeksForGeeks

Program 2:

Java

// Java program to demonstrate
// PrintWriter flush() method

import java.io.*;

class GFG {
    public static void main(String[] args)
    {

        try {

            // Create a PrintWriter instance
            PrintWriter writer
                = new PrintWriter(System.out);

            // Write the char to this writer
            // This will put the char in the stream
            // till it is printed on the console
            writer.write(65);

            // Now clear the stream
            // using flush() method
            writer.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

PrintStream flush() method in Java with Examples

K

Kirti_Mangal

Improve

Article Tags :

Practice Tags :

Java

Similar Reads

StringWriter flush() method in Java with Examples

The flush() method of StringWriter 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

PrintStream flush() method in Java with Examples

The flush() method of PrintStream Class in Java is used to flush the stream. By flushing the stream, it means to clear the stream of any element that may be or maybe not inside the stream. It neither accepts any parameter nor returns any value. Syntax: public void flush() Parameters: This method do

PrintWriter print(float) method in Java with Examples

The print(float) method of PrintWriter Class in Java is used to print the specified float value on the stream. This float value is taken as a parameter. Syntax: public void print(float floatValue) Parameters: This method accepts a mandatory parameter floatValue which is the float value to be written

Writer flush() method in Java with Examples

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 a

PrintWriter close() method in Java with Examples

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

PrintWriter println(float) method in Java with Examples

The println(float) method of PrintWriter Class in Java is used to print the specified float value on the stream and then break the line. This float value is taken as a parameter. Syntax: public void println(float floatValue) Parameters: This method accepts a mandatory parameter floatValue which is t

PrintWriter println() method in Java with Examples

The println() method of PrintWriter Class in Java is used to break the line in the stream. This method do not accepts any parameter or return any value. Syntax: public void println() Parameters: This method do not accepts any parameter. Return : This method do not returns any value. Below methods il

PrintWriter write(int) method in Java with Examples

The write(int) method of PrintWriter Class in Java is used to write the specified character on the stream. This character is specified using the ASCII value of the character passed as an integer value. This integer value is taken as a parameter. Syntax: public void write(int ascii) Parameters: This

PrintWriter print(int) method in Java with Examples

The print(int) method of PrintWriter Class in Java is used to print the specified int value on the stream. This int value is taken as a parameter. Syntax:public void print(int intValue)Parameters: This method accepts a mandatory parameter intValue which is the int value to be written on the stream.

StringWriter hashCode() method in Java with Examples

The hashCode() method of StringWriter Class in Java is used to get the HashCode value of this StringWriter instance. This method does not accepts any parameter and returns the required int value. Syntax: public int hashCode() Parameters: This method accepts does not accepts any parameter. Return Val