How to convert a char to a string in Java?

I have a char and I need a String. How do I convert from one to the other?

 

String stringValueOf = String.valueOf('c');

String characterToString = Character.toString('c');

String characterObjectToString = new Character('c').toString();

String concatBlankString = 'c' + "";

String fromCharArray = new String(new char[]{x});