Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//it under the terms of the GNU Affero General Public License as published by

import java.util.Collection;

import java.util.List;
import java.util.ListIterator;

public class Main {
    /**
     * Remove all null elements at the end of the list.
     */
    public static <T> void trimTail(List<T> l) {
        final ListIterator<T> it = l.listIterator(l.size());
        while (it.hasPrevious()) {
            if (it.previous() != null)
                return;
            it.remove();
        }
    }

    /**
     * @param coll
     * @postcondition (coll == null) --> (result == 0)
     * @postcondition (coll != null) --> (result == coll.size())
     */
    public static int size(Collection<?> coll) {
        return (coll == null) ? 0 : coll.size();
    }
}