BE THE CODER > Articles > Java > Basics > How to convert String to Byte Array

The following example shows converting String to Byte array. String class provides the following APIs for encoding String into a sequence of bytes.

java.lang.String

public byte[] getBytes()
Encodes this String to byte array with default Charset.
public byte[] getBytes(String charsetName)
Encodes this String to byte array with given Charset name.
public byte[] getBytes(Charset charset)
Encodes this String to byte array with given Charset.

File Name :	com/bethecoder/articles/basics/str2bytea/String2ByteArrayTest.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.articles.basics.str2bytea;



import java.io.UnsupportedEncodingException;

import java.nio.charset.Charset;

import java.util.Arrays;



public class String2ByteArrayTest {



  /**

   * @param args

   * @throws UnsupportedEncodingException 

   */

  public static void main(String[] args) throws UnsupportedEncodingException {



    //Get the bytes encoded in default charset, Charset.defaultCharset()

    String str = "BE THE CODER";

    byte [] bytes = str.getBytes();

    System.out.println(Arrays.toString(bytes));

    

    //Get the bytes encoded in UTF-16 charset

    byte [] bytes2 = str.getBytes("UTF-16");

    System.out.println(Arrays.toString(bytes2));

    

    //Get the bytes encoded in IBM420 charset

    byte [] bytes3 = str.getBytes(Charset.forName("IBM420"));

    System.out.println(Arrays.toString(bytes3));

  

  }



}