Java Collection: Comparable Interface
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March 01, 2023
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The Comparable interface (in java.lang package) is used to order the objects of user-defined class. It has compareTo(Object) method, ...
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Showing posts with label Java Collection Framework. Show all posts
Showing posts with label Java Collection Framework. Show all posts
Java Collection: EnumMap
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March 01, 2023
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It is a specialized implementation of the Map interface for enumeration data types. A few important facts about EnumMap are as follows:...
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Java Collection: Map Interface
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March 01, 2023
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A Map contains values on the basis of keys. Each key and value pair is known as an entry. It contains only unique keys. But it can contai...
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Java Collection: Hashtable
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March 01, 2023
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It is used to map keys to values. Please note that the spelling, while you are writing it. Few important facts of Hashtable are as foll...
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Java Collection: TreeMap
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March 01, 2023
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The TreeMap is used to store <key, value> pairs. It is sorted according to the natural ordering of its keys, or by a Comparator pro...
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Java Collection: LinkedHashMap
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March 01, 2023
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It is a Hash table and linked list implementation of the Map interface, where iteration order is predictable. It differs from HashMap in ...
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Java Collection: HashMap
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March 01, 2023
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It is a specialized implementation of the Map interface. It is used to store <key, value> pairs. Hashing technique is used in HashM...
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Java Collection: PriorityQueue
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March 01, 2023
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A PriorityQueue is used when the objects are supposed to be processed based on priority instead of their arrival time. A few important ...
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Java Collection: ArrayDeque
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March 01, 2023
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In this tutorial, we will discuss how to use the ArrayDeque class. The ArrayDeque class is basically an Array Double Ended Queue , wh...
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Java Collection: EnumSet
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March 01, 2023
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It is a specialized implementation of a Set interface for enumeration data types. A few important facts about EnumSet are as follows: ...
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Java Collection: TreeSet
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March 01, 2023
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The TreeSet is used to store objects in natural ordering or by a provided Comparator. A few important facts about TreeSet are as follow...
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Java Collection: LinkedHashSet
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March 01, 2023
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It is an ordered version of HashSet that maintains a doubly-linked List across all elements. We know that in HashSet iteration order is u...
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Java Collection: HashSet
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March 01, 2023
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It is a specialized implementation of the Set interface. It uses the concept of HashTable in Data Structure. A few important facts abou...
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Java Collection: List Interface
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March 01, 2023
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The List interface is the sub-interface of Collection interface. The following program shows how this interface is used. Source code...
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Java Collection: Stack
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March 01, 2023
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The Stack class is implemented based on the concept of the stack in Data Structure. Hierarchy of Stack class It inherits the Vector ...
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Java Collection: Vector
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March 01, 2023
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Vector is a dynamic array implementation in Java. Hence, elements are accessible by array indexes. A few important facts about Priority...
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Java Collection: LinkedList
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March 01, 2023
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It's a doubly-linked list implementation of the List and Deque interfaces. The important facts about LinkedList class are: I...
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Java Collection: ArrayList
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March 01, 2023
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The ArrayList class is used to store elements in a dynamic array. The important facts about ArrayList class are: It can contain ...
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Introduction to Java Collection Framework
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March 01, 2023
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In Java, collections are also known as containers. It is an object that forms a natural group of multiple elements in a single unit. Col...
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Java Collection: Comparator Interface
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May 20, 2019
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The Comparator interface in java.util is a useful utility for ordering the user-defined class objects. It contains two methods (i) compare...
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