java.io.ByteArrayOutputStream Example in Java

By Arvind Rai, September 28, 2013

java.io.ByteArrayOutputStream writes data in byte array inside it. java.io.ByteArrayOutputStream. ByteArrayOutputStream returns the same byte array by calling the method toByteArray. And then that byte array can be used to fulfill the requirements.

ByteArrayOutputStreamTest.java

package com.concretepage.io;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class ByteArrayOutputStreamTest {
  public static void main(String[] args) throws IOException {
          ByteArrayOutputStream baos = null;
          baos = new ByteArrayOutputStream();
          String s = "Hello World!";
          baos.write(s.getBytes());
          byte[] b = baos.toByteArray();
          for(int i=0; i<b.length; i++){
              System.out.print(new Character((char)b[i]));
          }
  }
}

Output: