Convert String to Base64 in Apex #inSalesforce

Convert String to Base64 in Apex #inSalesforce

Example:

String b64 = EncodingUtil.Base64Encode(Blob.valueOf('SampleSOMETHING'));
Blob b = EncodingUtil.base64Decode(b64);
String s = b.toString();
System.debug('!!!!!' + s);

Visual: https://www.youtube.com/watch?v=6sqVkjn0vns