Java tutorial
/* * Copyright (C) 2008 feilong * * 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.sunchenbin.store.feilong.core.lang; /** * {@link Object} . * * <h3></h3> * * <blockquote> * <ol> * <li>{@link org.apache.commons.lang3.ObjectUtils#equals(Object, Object)} ?null</li> * </ol> * </blockquote> * * @author feilong * @version 1.0.0 2010-4-5 ?11:00:54 * @see org.apache.commons.lang3.ObjectUtils * @since 1.0.0 */ public final class ObjectUtil { /** Don't let anyone instantiate this class. */ private ObjectUtil() { //AssertionError?. ?????. ???. //see Effective Java 2nd throw new AssertionError("No " + getClass().getName() + " instances for you!"); } /** * ?boolean?. * * @param object * * @return true */ public static Boolean isBoolean(Object object) { return object instanceof Boolean; } /** * ?Integer. * * @param object * * @return true */ public static Boolean isInteger(Object object) { return object instanceof Integer; } /** * ?. * * @param object * the object * @return true, if checks if is array * @since 1.3.0 */ public static Boolean isArray(Object object) { return object.getClass().isArray(); } }