Java tutorial
//package com.java2s; /** * Copyright (c) Istituto Nazionale di Fisica Nucleare (INFN). 2016-2018 * * 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 static java.util.Objects.nonNull; import java.util.Collection; public class Main { public static <T> boolean notNullOrEmpty(Collection<T> c) { return nonNull(c) && !c.isEmpty(); } }