What is a Constructor in Java? In Java, a constructor is a special type of method that is used to initialize objects. When you create an object of a class, the constructor is called automatically. Its main job is to set the initial values of the object’s properties or perform any setup that the object needs before it can be used. Why Do We Need Constructors? You need constructors because: Initialization : Constructors are responsible for initializing an object when it is created. Automatic Execution : A constructor is automatically called when an object is created, so you don’t have to manually initialize every property. Simplifying Object Creation : It simplifies object creation by providing default values or custom initialization. Where Do Constructors Fit in Java? Constructors fit within a class. They are used whenever a new object of that class is created, and they allow the object to be initialized. Constructors must have the same name as the class, and they don't have a re...
Computer architecture refers to the design and structure of a computer system. There are several types of computer architectures, each designed for specific purposes. Here are the main ones explained in simple terms: 1. Von Neumann Architecture (Stored Program Architecture) Description : This is the most common architecture for general-purpose computers. It consists of a Central Processing Unit (CPU) , memory , and input/output devices . How it works : In Von Neumann architecture, both data and instructions (programs) are stored in the same memory. The CPU fetches instructions from memory, executes them, and then moves to the next instruction. This architecture is simple and easy to implement. Example : Most personal computers, laptops, and desktops use this architecture. 2. Harvard Architecture Description : Harvard architecture is similar to Von Neumann, but with a key difference: it has separate memory for data and instructions . This allows the CPU to fetch instructions a...