Here you can find the source of uncapitalize(final String str)
public static String uncapitalize(final String str)
//package com.java2s; //License from project: Apache License public class Main { public static String uncapitalize(final String str) { if (str == null || str.length() == 0) { return str; }/* w w w.j ava2s .c om*/ return str.substring(0, 1).toLowerCase() + str.substring(1); } }