Base64Crypto.java

import java.util.Base64;

public class Base64Crypto
{
	static final String SEPARATOR = "----------------------------------------";
	static String[] tests = new String[] { "Hello" , "This is a test" , "I want to encode me then decode me :D" };
	
	public static void main ( String[] args )
	{
		for ( String test : tests )
		{
			String encoded = encrypt ( test );
			String decrypted = decrypt ( encoded );
			System.out.printf ( "%s%n%s -> %s%n%s -> %s%n" , SEPARATOR , test , encoded , encoded , decrypted );
		}
	}
	
	static String encrypt ( String plainText )
	{
		return Base64.getEncoder ().encodeToString ( plainText.getBytes () );
	}
	
	static String decrypt ( String base64 )
	{
		return new String ( Base64.getDecoder ().decode ( base64 ) );
	}
	
	//////////////////////////////////////////////////////////////////////////////////////////////////////////
	//                                             Output                                                   //
	//////////////////////////////////////////////////////////////////////////////////////////////////////////
	//      Hello -> SGVsbG8=                                                                               //
	//      SGVsbG8= -> Hello                                                                               //
	//      ----------------------------------------                                                        //
	//      This is a test -> VGhpcyBpcyBhIHRlc3Q=                                                          //
	//      VGhpcyBpcyBhIHRlc3Q= -> This is a test                                                          //
	//      ----------------------------------------                                                        //
	//      I want to encode me then decode me :D -> SSB3YW50IHRvIGVuY29kZSBtZSB0aGVuIGRlY29kZSBtZSA6RA==   //
	//      SSB3YW50IHRvIGVuY29kZSBtZSB0aGVuIGRlY29kZSBtZSA6RA== -> I want to encode me then decode me :D   //
	//////////////////////////////////////////////////////////////////////////////////////////////////////////
}