In this example we shall show you how to encode Strings with the Base64 algorithm. We are using theorg.apache.commons.codec.binary.Base64 class that provides Base64 encoding and decoding as defined by RFC 2045. To encode a String with Base64 one should perform the following steps:

• Create a String.
• Get the bytes from the String, usinggetBytes() API method of String.
• UseencodeBase64(byte[] binaryData) method oforg.apache.commons.codec.binary.Base64 to encode the byte array using the base64 algorithm.
• Print the encoded array, using thetoString(byte[] a) API method ofArrays,

as described in the code snippet below.

package com.javacodegeeks.snippets.core; import org.apache.commons.codec.binary.Base64;import java.util.Arrays; public class encodeBase64 {    public static void main(String[] args) {      String string = "Javacodegeeks";   // Get bytes from string  byte[] byteArray = Base64.encodeBase64(string.getBytes());   // Print the encoded byte array  System.out.println(Arrays.toString(byteArray));   // Print the encoded string  String encodedString = new String(byteArray);  System.out.println(string + " = " + encodedString);    }}

Output:

[83, 109, 70, 50, 89, 87, 78, 118, 90, 71, 86, 110, 90, 87, 86, 114, 99, 119, 61, 61]Javacodegeeks = SmF2YWNvZGVnZWVrcw==

 
This was an example of how to encode a String with Base64 in Java.

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