Java Collection First first(Collection collection)

Description

Replaces first() LINQ Returns first object of collection or null if empty

License

Apache License

Declaration

public static <T> T first(Collection<T> collection) 

Method Source Code

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

import java.util.Collection;

import java.util.Iterator;

public class Main {
    /**/*from   w ww  .  java  2 s  .c  om*/
     * Replaces first() LINQ
     *
     * Returns first object of collection or null if empty
     */
    public static <T> T first(Collection<T> collection) {
        Iterator<T> iterator = collection.iterator();
        if (iterator.hasNext())
            return iterator.next();
        else
            return null;
    }
}

Related

1. first(Collection values)
2. first(Collection collection)
3. first(Collection self)
4. first(Collection c)
5. first(Collection c)
6. first(Collection collection)
7. firstElement(Collection in)
8. firstElement(Collection c)
9. firstElementOf(final Collection collection)