Here you can find the source of camelCase(final String input)
public static String camelCase(final String input)
//package com.java2s; /*//from w ww .j av a2 s . c om * Copyright (c) 2014 CCM modding crew. * View members of the CCM modding crew on https://github.com/orgs/CCM-Modding/members * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ public class Main { /** * @return The date that results after appling the offset in the specified unit to the current date */ public static String camelCase(final String input) {// if the input has a space the it contains more than 1 word and we have to split them if (input.contains(" ")) {// Split at the spaces and then create a StringBuilder to re-create the original string final String[] strings = input.split(" "); final StringBuilder sb = new StringBuilder(); for (final String s : strings) {// for each of the independent strings we perform the the "action", and then append a space sb.append(s.substring(0, 1).toLowerCase()).append(s.substring(1).toLowerCase()).append(" "); } return sb.toString(); } // otherwise just perform the "action" return input.substring(0, 1).toLowerCase() + input.substring(1).toLowerCase(); } }