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Java ByteArrayOutputStream reset() Method with Example

ByteArrayOutputStream Class reset() method: Here, we are going to learn about the reset() method of ByteArrayOutputStream Class with its syntax and example.
Submitted by Preeti Jain, on March 28, 2020

ByteArrayOutputStream Class reset() method

• reset() method is available in java.io package.
• reset() method is used to reset this stream (i.e. it removes all currently consumed output in this stream and reset the variable count is set to 0).
• reset() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• reset() method does not throw an exception at the time of resetting the stream.

Syntax:

    public void reset();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is void, it returns nothing.

Example:

// Java program to demonstrate the example 
// of void reset()  method of ByteArrayInputStream

import java.io.*;

public class ResetOfBAOS {
 public static void main(String[] args) throws Exception {
  byte b1 = 97;
  byte b2 = 100;
  ByteArrayOutputStream BAOS = null;

  try {
   // Instantiates ByteArrayOutputStream
   BAOS = new ByteArrayOutputStream();

   // By using write() method is to
   // write b1 to the BAOS
   BAOS.write(b1);

   // By using toString() method is 
   // to represent the b1 as a string
   // before using reset()
   System.out.println("BAOS.write(b1): " + BAOS.toString());

   // By using reset() method is
   // to reset the stream
   BAOS.reset();

   // By using write() method is to
   // write b2 to the BAOS 
   BAOS.write(b2);

   // By using toString() method is 
   // to represent the b2 as a string
   // after using reset()
   System.out.println("BAOS.write(b2): " + BAOS.toString());

  } catch (Exception ex) {
   System.out.println(ex.toString());

  } finally {

   if (BAOS != null)
    BAOS.close();
  }
 }
}

Output

BAOS.write(b1): a
BAOS.write(b2): d