Java Codify

  Introduction to Java (For B.Tech/BCA Students) Java is a powerful, high-level programming language widely used in academic learning and professional software development. Developed in the mid-1990s, Java was designed with the goal of creating programs that can run on different types of computers without needing major changes. This platform independence is achieved through the concept of “write once, run anywhere,” making Java especially valuable in today’s diverse computing environment. For B.Tech students, Java serves as an excellent foundation for understanding core programming concepts. It fully supports object-oriented programming (OOP), including classes, objects, inheritance, polymorphism, abstraction, and encapsulation. These concepts are essential for building structured, reusable, and scalable software systems, which are central to modern computer science and engineering education. Java programs are compiled into an intermediate form called bytecode, which runs on th...

  Java Constructors A constructor is a method-like section of code.  When a new instance of the class is created, it is called.  Storage space for the object is allocated in the memory at the time the constructor is called. To initialize the object, a unique kind of method is employed. A constructor is invoked each time an object is created with the new() keyword. What is the Purpose of creating constructor? The purpose of a using constructor in Java programming language is to construct an object and assign values to the object's members.  Rules for creating Java constructor There are two rules defined for the constructor. Constructor name must be the same as its class name A Constructor must have no explicit return type A Java constructor cannot be abstract, static, final, and synchronized Types of Java constructors        1. Default constructor     2. No argument constructor     3. Parameterized constructor 1. Default constru...