Java List Null Empty isNotEmpty(List list)

Description

This method checks if the list is not null and have elements.

License

Open Source License

Parameter

Parameter	Description
E	a parameter
list	the list to check

Return

true/false

Declaration

public static <E> boolean isNotEmpty(List<E> list) 

Method Source Code

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

import java.util.List;
import java.util.Set;

public class Main {
    /**//  www.java 2  s  . co m
     * Check if set isn't empty.
     * 
     * @param set
     *          The set to be tested.
     * @return <code>true</code> is not empty, <code>false</code> otherwise.
     */
    public static <E> boolean isNotEmpty(Set<E> set) {
        return set != null && !set.isEmpty();
    }

    /**
     * This method checks if the list is not null and have elements.
     * 
     * @param <E>
     * 
     * @param list
     *          the list to check
     * @return true/false
     */
    public static <E> boolean isNotEmpty(List<E> list) {
        return list != null && !list.isEmpty();
    }

    /**
     * This method checks if the list is not null and have elements.
     * 
     * @param <E>
     * 
     * @param list
     *          the list to check
     * @return true/false
     */
    public static <E> boolean isNotEmpty(E[] list) {
        return list != null && list.length > 0;
    }

    /**
     * Check if set is empty.
     * 
     * @param set
     * @return
     */
    public static <E> boolean isEmpty(Set<E> set) {
        return !isNotEmpty(set);
    }

    public static <E> boolean isEmpty(List<E> list) {
        return !isNotEmpty(list);
    }

    public static <E> boolean isEmpty(E[] list) {
        return !isNotEmpty(list);
    }
}

Related

1. isNotEmpty(List values)
2. isNotEmpty(List input)
3. isNotEmpty(List input)
4. isNotEmpty(List list)
5. isNotEmpty(List value)
6. isNotEmpty(List list)
7. isNotEmpty(List list)
8. isNotEmpty(List objList)
9. isNotNullAndEmpty(List list)