Here you can find the source of titleCase(String in)
public static String titleCase(String in)
//package com.java2s; /*//from ww w.j a v a 2 s . c o m * Copyright 2012 frdfsnlght <frdfsnlght@gmail.com>. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public static String titleCase(String in) { StringBuilder sb = new StringBuilder(in); boolean cap = true; for (int i = 0; i < sb.length(); i++) { char ch = sb.charAt(i); if (ch == '_') { sb.setCharAt(i, ' '); cap = true; continue; } if (cap) { if (!Character.isTitleCase(ch)) { sb.setCharAt(i, Character.toTitleCase(ch)); cap = false; } continue; } if (!Character.isLowerCase(ch)) sb.setCharAt(i, Character.toLowerCase(ch)); } return sb.toString(); } }