How to convert a char from an alphabetical character to a hexadecimal number in Java?

Question

How do I convert a char from an alphabetical character to hexadecimal number in Java? If any one knows any built-in methods in Java that does the job or if you have your own method, could you please help?

Also, how would I convert from hex to binary?

Answer 1

You can convert from char to hex string.

char ch =  String hex = String.format("%04x", (int) ch); 

To read hex and convert to binary you can do

int num = Integer.parseInt(text, 16); String bin = Integer.toString(num, 2);