Java Collection Size sizeOf(Collection collection)

Description

size Of

License

Apache License

Declaration

@SuppressWarnings("rawtypes")
    public static int sizeOf(Collection collection) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.util.Collection;

import java.util.Map;

public class Main {
    @SuppressWarnings("rawtypes")
    public static int sizeOf(Collection collection) {
        if (isEmpty(collection)) {
            return 0;
        }//from   w ww.j a  v  a  2  s  .com
        return collection.size();
    }

    @SuppressWarnings("rawtypes")
    public static boolean isEmpty(Map map) {
        return !isNotEmpty(map);
    }

    public static boolean isEmpty(Collection<?> collection) {
        return !isNotEmpty(collection);
    }

    @SuppressWarnings("rawtypes")
    public static boolean isNotEmpty(Map map) {
        return map != null && map.size() > 0;
    }

    public static boolean isNotEmpty(Collection<?> collection) {
        return collection != null && collection.size() > 0;
    }
}

Related

1. size(final Collection collection)
2. size(final Collection collection)
3. size(final Collection items)
4. sizeM1(Collection collection)
5. sizeOf(Collection collection)
6. sizeOf(Collection coll)
7. sizeOf(Collection collection)