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You will frequently wish to repeat the collection’s pieces. You might want to show each element, for instance. Using an iterator—an object that implements either the Iterator or the ListIterator interface—is the simplest way to accomplish this. You can cycle over a collection using an iterator, adding or removing elements as you go. ListIterator is […]
July 22, 2022 | Java | No comments
The Java Collections Framework includes the Collections class in the Java.util.Collections package. The static methods that work with collections or return collections are essentially utilized with the collections class. If the collection or object supplied to the methods is null, all the methods of this class raise the NullPointerException. Syntax: Collections class fields: Following are the […]
July 22, 2022 | Java | No comments
Numerous Interfaces in the Collections framework define the fundamental characteristics of distinct collection classes. Collection Interface: The interface that all classes in the collection framework implement is called the Collection interface. It identifies the methods each collection will contain. To put it another way, the Collection interface creates the basis upon which the collection framework […]
July 21, 2022 | Java | No comments
What is a collection in Java? Java’s Collection framework offers an architecture for storing and managing a collection of objects. All data actions, including searching, sorting, insertion, manipulation, and deletion, are possible with Java Collections. What is the Collection Framework?The Collection framework is an integrated architecture for managing a collection of things. It has: Interfaces […]
July 19, 2022 | Java | No comments
Generics are types that have parameters. The goal is to make it possible for methods, classes, and interfaces to take types (Integer, String, etc., and user-defined types) as a parameter. Generics can be used to build classes that interact with various data types. A generic entity is one that works on a parameterized type, such […]
July 18, 2022 | Java | No comments
What is Java Networking? Connecting two or more computing devices so that we can share resources is the idea behind Java networking. The Java socket programming language offers the ability to transfer data among many computing systems. The application layer is where all network communications for Java programs take place. The J2SE APIs’ java.net package […]
July 16, 2022 | Java | No comments
An object’s state can be transformed into a byte stream through a process known as serialization. Deserialization is the opposite procedure, in which the actual Java object is recreated in memory using a byte stream. This mechanism is used to persist the object. We use the writeObject() function of the ObjectOutputStream class to serialize the […]
July 16, 2022 | Java | No comments
With its I/O package, Java includes a variety of Streams that make it easier for the user to carry out any input-output tasks. For complete I/O operation execution, these streams support all object, data-type, character, and file kinds. Stream: A data stream is a collection of data. A stream in Java is made up of […]
July 14, 2022 | Java | No comments
Primitive data types are handled differently in Java, which led to the development of wrapper classes, which include the components Autoboxing and Unboxing. Autoboxing: Autoboxing is the process of transforming a primitive value into an object of the relevant wrapper class. Changing an int to the Integer class, for instance. When a primitive value is […]
July 13, 2022 | Java | No comments
What are Enums in Java? In computer languages, enumerations are used to express a collection of named constants. For instance, it can be used for weekdays, colors, and vowels. Enums are employed when all possible values are known at the time of compilation, as in the case of menu options, rounding modes, command-line inputs, etc. […]
July 12, 2022 | Java | No comments