Java tutorial
//package com.java2s; /* * Copyright 2016 Michael A Updike * * 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. * * */ import android.text.TextUtils; public class Main { public static String capitalize(String s) { if (TextUtils.isEmpty(s)) { return ""; } final char first = s.charAt(0); if (Character.isUpperCase(first)) { return s; } else { return Character.toUpperCase(first) + s.substring(1); } } }