Write code to check if a char is Letter
//package com.book2s; public class Main { public static void main(String[] argv) { char ch = 'a'; System.out.println(isLetter(ch)); }//w w w . j a v a 2 s . c o m /** * * @param ch The Character. * * @return true if the character is a capital or lowercase letter. * */ public static boolean isLetter(char ch) { if (ch >= 'A' && ch <= 'Z' || ch >= 'a' && ch <= 'z') return true; return false; } }