Java isLetter method
Character class’s isletter method can be used to check if character is letter or not. Method signature [crayon-6095491c4f263648465745/] Parameters ch is primitive character type. Return type boolean is primitive character type. [crayon-6095491c4f269043987785/] When you run above program, you will get below output: true true false false That’s all about java Character’s isletter method.