Java tutorial
/* * Copyright 2017 Sam Sun <github-contact@samczsun.com> * * 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. */ package com.heliosdecompiler.helios.utils; import org.apache.commons.io.IOUtils; import java.io.IOException; import java.io.InputStream; import java.nio.charset.StandardCharsets; import java.util.Collection; import java.util.Iterator; public class Utils { public static <T> T find(T needle, Collection<T> haystack) { for (Iterator<T> iter = haystack.iterator(); iter.hasNext();) { T next = iter.next(); if (next.equals(needle)) { return next; } } return null; } }