Java Collection Null isNull(Collection collection)

Description

Determines whether or not an Collection contains only null elements.

License

Open Source License

Parameter

Parameter	Description
collection	a parameter

Declaration

public static boolean isNull(Collection<?> collection) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.Collection;

public class Main {
    /**//  ww w  . jav  a  2 s  . c o m
     * Determines whether or not an {@link Collection}
     * contains <i>only</i> null elements.
     *
     * @param collection
     * @return
     */
    public static boolean isNull(Collection<?> collection) {
        return collection.stream().allMatch(e -> e == null);
    }
}

Related

1. isEmplyOrNull(Collection collection)
2. isNotNull(Collection collection)
3. isNull(Collection collection)
4. isNull(Collection collection)
5. isNull(Collection c)
6. isNull(Collection collection)
7. isNull(Collection collection)
8. nullSafe(Collection collection)
9. nullSafe(Collection collection)