Comparing chars in Java

Question

I want to check a char variable is one of 21 specific chars, what is the shortest way I can do this?

For example:

if(symbol == (\'A\'|\'B\'|\'C\')){}         


        

Answer 1

Option 2 will work. You could also use a Set or

char[] myCharSet = new char[] {'A', 'B', 'C', ...};
Arrays.sort(myCharSet);
if (Arrays.binarySearch(myCharSet, symbol) >= 0) { ... }