Here you can find the source of toLowerCaseForFirstChar(String str)
public static String toLowerCaseForFirstChar(String str)
//package com.java2s; //License from project: Apache License public class Main { public static String toLowerCaseForFirstChar(String str) { return str.substring(0, 1).toLowerCase().concat(str.substring(1)); }/*from www. java2s.c o m*/ }