Here you can find the source of capitalize(String word)
public static String capitalize(String word)
//package com.java2s; /**// w w w .j av a2 s . c o m * Copyright 2014 Yahoo! Inc. 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. * See accompanying LICENSE file. */ public class Main { public static String capitalize(String word) { StringBuilder buff = new StringBuilder(word); if (word.charAt(0) != '_') { buff.setCharAt(0, Character.toUpperCase(word.charAt(0))); } for (int i = 1; i < buff.length(); i++) { if (buff.charAt(i - 1) == '_') { buff.setCharAt(i, Character.toUpperCase(word.charAt(i))); } } return buff.toString().replace("_", ""); } }