Here you can find the source of startsWithIgnoreCase(final String value, final String possiblePrefix)
public static boolean startsWithIgnoreCase(final String value, final String possiblePrefix)
//package com.java2s; /*// www . j a v a2s.c o m * Copyright 2002-2004 The Apache Software Foundation. * * 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. * * This file contains code derived from StringUtils.java in Apache Commons Lang. * * The remainder of the code is Copyright (c) Microsoft Corporation. All rights * reserved. */ public class Main { public static boolean startsWithIgnoreCase(final String value, final String possiblePrefix) { if (value == null || possiblePrefix == null || value.length() < possiblePrefix.length()) { return false; } return value.substring(0, possiblePrefix.length()).equalsIgnoreCase(possiblePrefix); } }