What is Exception Handling in Java? Lesson - 23 Java EE Tutorial: All You Need To Know About Java EE Lesson - 22 Top 25 Pattern Programs in Java For Printing Numbers Lesson - 21 Java vs JavaScript: Know The 8 Major Differences Lesson - 20 Python: Which is the Best Programming Language? Lesson - 19 The Differences Between C++ and Java That You Need To Know Lesson - 18 Your One-Stop Solution for Multithreading in Java Lesson - 17 What is a Java Lambda Expression and How to Implement It? Lesson - 16 What is Polymorphism in Java and How to Implement It? Lesson - 15 What is Java Interface and Why it's Needed? Lesson - 14 What is Inheritance in Java and How to Implement It Lesson - 13 What is an Abstract Class in Java and How to Implement It? Lesson - 12 What is Encapsulation in Java and How to Implement It? Lesson - 11 How to Implement the Revolutionary OOPs Concepts in Java Lesson - 10 What Are Java Classes and Objects and How Do You Implement Them? Lesson - 9 What Are Java Collections and How to Implement Them? Lesson - 8 What Are Java Strings And How to Implement Them? Lesson - 6Īrrays In Java: Declare, Define, and Access Array Lesson - 7 How to Get Started With Eclipse IDE? Lesson - 5 One-Stop Solution for Java Installation in Windows Lesson - 4 What Is JDK in Java? Why Do We Need It? Lesson - 3 What is Java: A Beginners Guide To Java Lesson - 2 In the later tutorials, we will learn about the collections framework (its interfaces and classes) in detail with the help of examples.10 Reasons That Explain Why You Need to Learn Java Lesson - 1 The Collections framework is defined in the java.util package The class implements the List interface (which is a subinterface of the Collection interface). The ArrayList class allows us to create resizable arrays. The ArrayList class provides the functionality of resizable arrays.īefore we wrap up this tutorial, let's take an example of the ArrayList class of the collections framework.To store data in key/value pairs, we can use the Map interface.If we want our data to be unique, then we can use the Set interface provided by the collections framework.Moreover, the collections framework allows us to use a specific data structure for a particular type of data. Our code will be much more efficient as the collections framework is highly optimized.We do not have to write code to implement these data structures and algorithms manually.The Java collections framework provides various data structures and algorithms that can be used directly. To learn more, visit Java Iterator Interface In Java, the Iterator interface provides methods that can be used to access elements of collections. And, each key has a single value associated with it. Keys are unique names that can be used to access a particular element in a map. In Java, the Map interface allows elements to be stored in key/value pairs. To learn more, visit Java Queue Interface The Queue interface is used when we want to store and access elements in First In, First Out manner. To learn more, visit Java Set Interface Queue Interface The Set interface allows us to store elements in different sets similar to the set in mathematics. To learn more, visit Java List Interface Set Interface The List interface is an ordered collection that allows us to add and remove elements like an array. Here are the subinterfaces of the Collection Interface: List Interface Subinterfaces of the Collection InterfaceĪs mentioned earlier, the Collection interface includes subinterfaces that are implemented by Java classes.Īll the methods of the Collection interface are also present in its subinterfaces. These interfaces may also have subinterfaces. The framework includes other interfaces as well: Map and Iterator. The Collection interface is the root interface of the collections framework. People often get confused between the collections framework and Collection Interface. To learn more, visit: Java Collection Interface Collections Framework Vs. Java does not provide direct implementations of the Collection interface but provides implementations of its subinterfaces like List, Set, and Queue. The Collection interface is the root interface of the collections framework hierarchy. Let's learn about the commonly used interfaces in brief in this tutorial. We will learn about these interfaces, their subinterfaces, and implementation in various classes in detail in the later chapters. These interfaces include several methods to perform different operations on collections. The Java collections framework provides various interfaces. The Java collections framework provides a set of interfaces and classes to implement various data structures and algorithms.įor example, the LinkedList class of the collections framework provides the implementation of the doubly-linked list data structure.
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