Edit C:\Program Files\Java\jdk1.8.0_121\com\sun\javafx\scene\control\SizeLimitedList.java
/* * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package com.sun.javafx.scene.control; import java.util.LinkedList; import java.util.List; /** * A list that has a maximum size. Useful for recording historical data, but not * too much of it. * * <p>Items are added at the front of the list. That is, the item at index 0 is * more recent than that added at index 1. In this regard, this class resembles * a stack.</p> * * @param <E> The type of the items added into the list. */ public class SizeLimitedList<E> { private final int maxSize; private final List<E> backingList; public SizeLimitedList(int maxSize) { this.maxSize = maxSize; this.backingList = new LinkedList<>(); } public E get(int index) { return backingList.get(index); } public void add(E item) { backingList.add(0, item); if (backingList.size() > maxSize) { backingList.remove(maxSize); } } public int size() { return backingList.size(); } public boolean contains(E item) { return backingList.contains(item); } }
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