Java Collection Empty isEmpty(Collection o)

Description

is Empty

License

Open Source License

Declaration

public static boolean isEmpty(Collection<?> o) 

Method Source Code

//package com.java2s;

import java.util.Collection;

import java.util.Map;

public class Main {

    public static boolean isEmpty(Object object) {
        return (object == null);
    }/*from  ww  w.j  a  va2s. c  o  m*/

    public static boolean isEmpty(Object[] objects) {
        return (objects == null || objects.length == 0);
    }

    public static boolean isEmpty(String s) {
        return (s == null || "".equals(s.trim()));
    }

    public static boolean isEmpty(Collection<?> o) {
        return (o == null || o.isEmpty());
    }

    public static boolean isEmpty(Map<?, ?> o) {
        return (o == null || o.isEmpty());
    }

    public static String trim(String value) {
        if (value == null)
            return null;

        return value.trim();
    }
}

Related

1. isEmpty(Collection collection)
2. isEmpty(Collection collection)
3. isEmpty(Collection collection)
4. isEmpty(Collection collection)
5. isEmpty(Collection collection)
6. isEmpty(Collection objs)
7. isEmpty(Collection value)
8. isEmpty(Collection values)
9. isEmpty(Collection c)