Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import java.util.*;

public class Main {
    /**
     * Gets an entry of given list with given index, but safely.<br>
     * That means if the index is greater or lower than the allowed
     * boundaries this method will either use the first index or the last index.<br>
     *
     * @param eList      The element's list
     * @param index      The index to list the entry from
     * @param defaultVal If the value would be null
     * @param <E>        The element's type
     * @return The element (or null if the list is empty)
     */
    public static <E> E getEntrySafely(List<E> eList, int index, E defaultVal) {
        if (index < 0)
            index *= -1;

        if (eList.isEmpty())
            return defaultVal;
        if (index >= eList.size())
            index = eList.size() - 1;
        else if (index < 0)
            index = 0;

        if (index >= eList.size())
            return defaultVal;
        return eList.get(index);
    }
}