Java ByteArrayOutputStream reset() Method

The reset() method of Java ByteArrayOutputStream class is used to reset the stream and makes the stream count =0 so that all currently accumulated output in the output stream is discarded. The output stream can be used again, reusing the already allocated buffer space.

Syntax:

Parameters:

Returns

Example 1

import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class JavaByteArrayOutputStreamResetExample1 {
        public static void main(String[] args) throws IOException {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            baos.write(65);
            String string = baos.toString();
            System.out.println("Before Resetting : " + string);
            baos.reset();
            baos.write(85);
            string = baos.toString();
            System.out.println("After Resetting : " + string);
        }
}

Test it Now

Output:

Before Resetting :A
After Resetting :U

Example 2

import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class JavaByteArrayOutputStreamResetExample2 {
    public static void main(String[] args) throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        baos.write(75);
        String string = baos.toString();
        System.out.println("Before Resetting : " + string);
        baos.reset();
        baos.write(90);
        string = baos.toString();
        System.out.println("After Resetting : " + string);
    }
}

Test it Now

Output: