Checks if an array of Objects is empty or null . - Android java.lang

Android examples for java.lang:Array Element

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Description

Checks if an array of Objects is empty or null .

Demo Code

/*//w  ww. j a v a 2s  .co  m
 * 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.
 */
//package com.java2s;

public class Main {
    /**
     * <p>Checks if an array of Objects is empty or {@code null}.</p>
     *
     * @param array  the array to test
     * @return {@code true} if the array is empty or {@code null}
     * @since 2.1
     */
    public static boolean isEmpty(final Object[] array) {
        return array == null || array.length == 0;
    }

    /**
     * <p>Checks if an array of primitive longs is empty or {@code null}.</p>
     *
     * @param array  the array to test
     * @return {@code true} if the array is empty or {@code null}
     * @since 2.1
     */
    public static boolean isEmpty(final long[] array) {
        return array == null || array.length == 0;
    }

    /**
     * <p>Checks if an array of primitive ints is empty or {@code null}.</p>
     *
     * @param array  the array to test
     * @return {@code true} if the array is empty or {@code null}
     * @since 2.1
     */
    public static boolean isEmpty(final int[] array) {
        return array == null || array.length == 0;
    }

    /**
     * <p>Checks if an array of primitive shorts is empty or {@code null}.</p>
     *
     * @param array  the array to test
     * @return {@code true} if the array is empty or {@code null}
     * @since 2.1
     */
    public static boolean isEmpty(final short[] array) {
        return array == null || array.length == 0;
    }

    /**
     * <p>Checks if an array of primitive chars is empty or {@code null}.</p>
     *
     * @param array  the array to test
     * @return {@code true} if the array is empty or {@code null}
     * @since 2.1
     */
    public static boolean isEmpty(final char[] array) {
        return array == null || array.length == 0;
    }

    /**
     * <p>Checks if an array of primitive bytes is empty or {@code null}.</p>
     *
     * @param array  the array to test
     * @return {@code true} if the array is empty or {@code null}
     * @since 2.1
     */
    public static boolean isEmpty(final byte[] array) {
        return array == null || array.length == 0;
    }

    /**
     * <p>Checks if an array of primitive doubles is empty or {@code null}.</p>
     *
     * @param array  the array to test
     * @return {@code true} if the array is empty or {@code null}
     * @since 2.1
     */
    public static boolean isEmpty(final double[] array) {
        return array == null || array.length == 0;
    }

    /**
     * <p>Checks if an array of primitive floats is empty or {@code null}.</p>
     *
     * @param array  the array to test
     * @return {@code true} if the array is empty or {@code null}
     * @since 2.1
     */
    public static boolean isEmpty(final float[] array) {
        return array == null || array.length == 0;
    }

    /**
     * <p>Checks if an array of primitive booleans is empty or {@code null}.</p>
     *
     * @param array  the array to test
     * @return {@code true} if the array is empty or {@code null}
     * @since 2.1
     */
    public static boolean isEmpty(final boolean[] array) {
        return array == null || array.length == 0;
    }
}

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