Here you can find the source of indexOfThatStartsWith(List
public static int indexOfThatStartsWith(List<String> list, String startsWith, int startIndex)
//package com.java2s; /******************************************************************************* * Copyright 2011 Google Inc. All Rights Reserved. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * 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.//from w w w. j a v a 2 s . c o m *******************************************************************************/ import java.util.List; public class Main { /** * Finds the first string that starts with the given string. * * @return the index, or -1 */ public static int indexOfThatStartsWith(List<String> list, String startsWith, int startIndex) { for (int i = startIndex; i < list.size(); i++) { String curStr = list.get(i); if (curStr != null && curStr.startsWith(startsWith)) { return i; } } return -1; } }