Java tutorial
//package com.java2s; /* * See the NOTICE file distributed with this work for additional * information regarding copyright ownership. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ import java.lang.reflect.Type; import java.util.Arrays; import java.util.HashSet; import java.util.Set; public class Main { /** * The classes of object that can easily be converted to simple String. */ private static final Set<Class<?>> SIMPLECLASSES = new HashSet<Class<?>>( Arrays.<Class<?>>asList(String.class, Character.class, Boolean.class, byte[].class)); /** * @param type the type can be converted to simple String * @return true of the type is simple */ public static boolean isSimpleType(Type type) { boolean simpleType = false; if (type instanceof Class) { Class<?> typeClass = (Class<?>) type; simpleType = SIMPLECLASSES.contains(typeClass) || Number.class.isAssignableFrom(typeClass) || typeClass.isPrimitive() || typeClass.isEnum(); } return simpleType; } }