是数组或集合类型

/*

 * Copyright (c) 2008-2016 Haulmont.

 *

 * 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.nowjava;


public class Main {// from N o w J a v a . c o m - 时代Java

    public static void main(String[] argv) throws Exception {

        String type = "nowjava.com";

        System.out.println(isArrayOrCollection(type));

    }


    public static boolean isArrayOrCollection(String type) {

        return isCollection(type) || isArray(type);

    }
/**from N o w J a v a . c o m**/

    public static boolean isCollection(String type) {

        return isList(type) || isSet(type);

    }


    public static boolean isArray(String type) {

        return type != null

                && (type.startsWith("[") && type.length() >= 2

                        && getArrayType(type) != null || type

                            .endsWith("[]"));

    }


    public static boolean isList(String type) {

        return "java.util.List".equals(type);

    }


    public static boolean isSet(String type) {

        return "java.util.Set".equals(type);

    }


    public static Class getArrayType(String type) {

        if (type.endsWith("[]")) {

            try {

                return Class.forName(type.substring(0, type.length() - 2));

            } catch (ClassNotFoundException e) {

                throw new RuntimeException("Wrong array type");

            }

        }

        switch (type.substring(0, 2)) {

        case "[Z":

            return boolean.class;

        case "[B":

            return byte.class;

        case "[S":

            return short.class;

        case "[I":

            return int.class;

        case "[J":

            return long.class;

        case "[F":

            return float.