Java: Subtract '0' from char to get an int… why does this work?

Question

This works fine:

int foo = bar.charAt(1) - \'0\';

Yet this doesn\'t - because bar.charAt(x) returns a char:

int foo = bar.c         


        

Answer 1

Your second snipped should work fine though:

int foo = bar.charAt(1);

A char, just like a short or byte, will always be silently cast to int if needed.

This will compile just fine: int i = 'c';