Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2010 BSI Business Systems Integration AG.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     BSI Business Systems Integration AG - initial API and implementation
 ******************************************************************************/

import java.util.Collection;

import java.util.List;

public class Main {
    /**
     * exception safe access of an element of a list by index.
     *
     * @param list
     * @param index
     * @return null if the index is out of the list bounds or the element is null by itself.
     */
    public static <T> T getElement(List<T> list, int index) {
        if (index >= 0 && index < list.size()) {
            return list.get(index);
        }
        return null;
    }

    public static <T> int size(Collection<T> list) {
        if (list == null) {
            return 0;
        }
        return list.size();
    }
}