BE THE CODER > Tools and Libs > Uncommons Maths

Uncommons Maths is a java library with nice math utilities and random number generators. This requires the library uncommons-maths-1.2.2.jar to be in classpath. The following example shows using BinaryUtils.convertHexStringToBytes() API.

File Name :	com/bethecoder/tutorials/uncommons/HexString2BytesTest.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.uncommons;



import java.nio.ByteBuffer;

import java.util.Arrays;



import org.uncommons.maths.binary.BinaryUtils;



public class HexString2BytesTest {



  /**

   * @param args

   */

  public static void main(String[] args) {

    

    String hexStr = "0107D9D1";

    

    //Convert hex string to byte array

    byte [] bytes =  BinaryUtils.convertHexStringToBytes(hexStr);

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

    

    //Convert byte array to number

    System.out.println(ByteBuffer.wrap(bytes).getInt());

  }



}

Hex String to Byte Array