Here you can find the source of contains(String target, String content)
public static boolean contains(String target, String content)
//package com.java2s; /*// w ww .j av a 2s. c om * Copyright 2007-2009 Medsea Business Solutions S.L. * * 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 boolean contains(String target, String content) { if (target.indexOf(content) != -1) { return true; } return false; } }