Java Class Type Check isPrimitiveWrapper(Class<?> type)

Description

Returns whether the given type is a primitive wrapper ( Boolean , Byte , Character , Short , Integer , Long , Double , Float ).

License

Apache License

Parameter

Parameter	Description
type	The class to query or null.

Return

true if the given type is a primitive wrapper ( , , , , , , , ).

Declaration

public static boolean isPrimitiveWrapper(Class<?> type)

Method Source Code

//package com.java2s;
/*//from ww  w .j  a  v  a 2  s  .  c om
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 java.util.*;

public class Main {
    /**
     * Maps wrapper {@code Class}es to their corresponding primitive types.
     */
    private static final Map<Class<?>, Class<?>> wrapperPrimitiveMap = new HashMap<>();

    /**
     * Returns whether the given {@code type} is a primitive wrapper ({@link Boolean}, {@link Byte}, {@link Character}, {@link Short},
     * {@link Integer}, {@link Long}, {@link Double}, {@link Float}).
     *
     * @param type
     *            The class to query or null.
     * @return true if the given {@code type} is a primitive wrapper ({@link Boolean}, {@link Byte}, {@link Character}, {@link Short},
     *         {@link Integer}, {@link Long}, {@link Double}, {@link Float}).
     * @since 3.1
     */
    public static boolean isPrimitiveWrapper(Class<?> type) {
        return wrapperPrimitiveMap.containsKey(type);
    }
}

Java Class Type Check isPrimitiveWrapper(Class type)