Here you can find the source of isEmpty(List
isEmpty(null) = true; isEmpty({}) = true; isEmpty({1}) = false;
Parameter | Description |
---|---|
V | < > |
list | - of List type. |
public static <V> boolean isEmpty(List<V> list)
//package com.java2s; import java.util.List; public class Main { /**// w w w . j a v a 2 s . com * Returns true if list is null or its size is 0 * * <pre> * isEmpty(null) = true; * isEmpty({}) = true; * isEmpty({1}) = false; * </pre> * * @param <V> * @param list - of {@link List} type. * @return boolean - true if list is null or empty, else false. */ public static <V> boolean isEmpty(List<V> list) { return (list == null || list.size() == 0); } }