EnumSet complementOf(EnumSet e): 创建一个其元素类型与指定EnumSet里元素类型相同的EnumSet集合,新EnumSet集合包含原EnumSet集合所不包含的、此类枚举类剩下的枚举值(即新EnumSet集合和原EnumSet集合的集合元素加起来是该枚举类的所有枚举值)。 EnumSet copyOf(Colle
User类: package www.entity;import java.util.Objects;public class User implements Comparable {private String name;private int age;@Overridepublic boolean equals(Object o) {System.out.println("执行了");if (this == o) return true;if (o == null || getClass() != o.getClass()) return fal...
Java Collection框架(七)红黑树与TreeNode源码浅析 2018年拍摄于京都平安神宫内。 今天看树型数据结构。 树 上图是一个简单的树形结构,最顶层为一个根节点,向下延伸出树杈和叶子构成一个具有层次关系的集合,例如前端树形插件Ztree,用过的朋友都很熟悉知道这个结构。 一个节点也是一颗树,这个节点就是root根节点,上...
packagecom.alpari;importjava.util.ArrayList;importjava.util.Collection;publicclassDemoCollection{publicstaticvoidmain(String[] args){// 创建集合Collectioncollection=newArrayList();// 添加元素collection.add("java"); collection.add("c++"); System.out.println("元素个数 "+collection.size());// 打印:...
1.Collection接口:单列集合,用来存储一个一个的对象 2.Set接口:存储无序的,不可重复的数据 ,说白了就是高中讲的"集合" 3.HashSet接口:作为Set接口的主要实现类,线程不安全的,可以存储null值 4.LinkedHashSet:作为HashSet的子类,遍历其内部数据时,可以按照添加的顺序进行遍历。
Collection<V>values() Returns a Collection view of the values contained in this map. Methods inherited from class java.util.AbstractMap equals, hashCode, isEmpty, toString Methods inherited from class java.lang.Object finalize, getClass, notify, notifyAll, wait, wait, wait Methods inherited from...
TreeSet(Collection<? extendsE> c) Constructs a new tree set containing the elements in the specified collection, sorted according to thenatural orderingof its elements. TreeSet(Comparator<? superE> comparator) Constructs a new, empty tree set, sorted according to the specified comparator. ...
隐藏过滤条件 mx.controls FileSystemTree - AS3 Flex 属性 | 方法 | 事件 | 样式 | 效果 | 常量 包 x 顶级 adobe.utils air.desktop air.net air.update air.update.events com.adobe.viewsource fl.accessibility fl.containers fl.controls fl.controls.dataGridClasses fl.controls.listClasses fl....
In this case, we provide all of our points at construction time, but you may also create an empty tree and add points later. TheVPTreeclass implements Java'sCollectioninterface and supports all optional operations. Note that aVPTreehas two generic types: a general "base" point type and a...
An Open-Source Collection of Flash Cards to Help You Preparing Your Algorithms & Data Structures and System Design Interviews 💯 java tree algorithm linked-list stack queue math algorithms graph array recursion bit-manipulation data-structures complexity sorting-algorithms heap interview-practice dynamic...