Convert base64 string to a byte array : Convert from String « Data Type « Java Tutorial

public class Main {
  public static void main(String[] argv) throws Exception {

    byte[] buf = new byte[] { 0x12, 0x23 };
    String s = new sun.misc.BASE64Encoder().encode(buf);

    buf = new sun.misc.BASE64Decoder().decodeBuffer(s);

2.36.Convert from String
2.36.1.Number Parsing
2.36.2.Integer.valueOf: Converting String to Integer
2.36.3.Integer.parseInt(): Converting String to int
2.36.5.sums a list of numbers entered by the user
2.36.6.Convert string of time to time object
2.36.7.Converting a String to a byte Number
2.36.8.Converting a String to a short Number
2.36.9.Converting a String to a int(integer) Number
2.36.10.Convert a String to Date
2.36.11.Convert String to character array
2.36.12.Convert base64 string to a byte array
2.36.13.Parse basic types