How to get sum of char values produced in a loop?

Question

Sorry if the title is misleading or is confusing, but here is my dilemma. I am inputting a string, and want to assign a value to each capitalized letter in the alphabet (A=1, ..

Answer 1

Achieve the same in a concise way by employing Java 8's lambda functions

String str = "ABCD";
int sum = str.chars()
                .filter(c -> c >= 'A' && c <= 'Z')
                .map(c -> 1 + c - 'A')
                .reduce(0, Integer::sum);