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Collection implementations in pre-JDK 1.2 versions of the Java platform included few data structure classes, but did not contain a collections framework. [4] The standard methods for grouping Java objects were via the array, the Vector, and the Hashtable classes, which unfortunately were not easy to extend, and did not implement a standard member interface.
Primitive wrapper classes are used to create an Object that needs to represent primitive types in Collection classes (i.e., in the Java API), in the java.util package and in the java.lang.reflect reflection package. Collection classes are Java API-defined classes that can store objects in a manner similar to how data structures like arrays ...
A Java package organizes Java classes into namespaces, [1] ... In Java 9 (released on September 21, 2017) support for "modules", a kind of collection of packages, was ...
Since JDK 1.2, Java has included a standard set of collection classes, the Java collections framework Doug Lea , who also participated in the Java collections framework implementation, developed a concurrency package , comprising several concurrency primitives and a large battery of collection-related classes. [ 19 ]
Mathematics package: java.math provides mathematical expressions and evaluation, as well as arbitrary-precision decimal and integer number datatypes. Collections and Utilities : built-in Collection data structures, and utility classes, for regular expressions, concurrency, logging and data compression.
This package contains standard java types like Integers and Strings as well as basic exceptions, math functions, system functions, threading and security functions. java.util A streamlined version of the java.util collection library. This package contains the collection classes like Vector and Hashtable. It also contains calendar and date class.
Enjoy a classic game of Hearts and watch out for the Queen of Spades!
The Java Collections Framework (JCF) is a set of classes and interfaces that implement commonly reusable collection data structures. Java Media Framework: The Java Media Framework (JMF) is a Java library that enables audio, video and other time-based media to be added to Java applications and applets. Java Topology suite: Java Topology Suite ...