Java Array Empty Check isEmpty(Object[] array)

Description

Checks if an array of Objects is empty or null.

License

Apache License

Parameter

Parameter	Description
array	the array to test

Return

true if the array is empty or null

Declaration

public static boolean isEmpty(Object[] array) 

Method Source Code

//package com.java2s;
/**/*  ww  w . j  a  v a2  s .  co  m*/
 * Copyright (c) 2005-2012 springside.org.cn
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 */

import java.util.Collection;

import java.util.Map;

public class Main {
    public static boolean isEmpty(Collection collection) {
        return (collection == null || collection.isEmpty());
    }

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

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

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

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

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

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

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

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

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

    public static boolean isEmpty(Map map) {
        if (map == null || map.size() == 0) {
            return true;
        }
        return false;
    }
}

Related

1. isEmpty(int[] array)
2. isEmpty(Object[] args)
3. isEmpty(Object[] arr)
4. isEmpty(Object[] array)
5. isEmpty(Object[] array)
6. isEmpty(Object[] array)
7. isEmpty(Object[] array)
8. isEmpty(Object[] array)
9. isEmpty(Object[] array)