Write code to change First Character To Lower Case
//package com.book2s; public class Main { public static void main(String[] argv) { String upperCaseStr = "Book2s.com"; System.out.println(changeFirstCharacterToLowerCase(upperCaseStr)); }/*from w ww. j a v a 2 s . c o m*/ public static final String changeFirstCharacterToLowerCase( String upperCaseStr) { char[] chars = new char[1]; chars[0] = upperCaseStr.charAt(0); String temp = new String(chars); if (chars[0] >= 'A' && chars[0] <= 'Z') { upperCaseStr = upperCaseStr.replaceFirst(temp, temp.toLowerCase()); } return upperCaseStr; } }