Smart Grids and Energy Storage Systems: Powering the Future of Energy In today’s rapidly evolving energy landscape, traditional power grids are being replaced by more intelligent, efficient, and sustainable systems. Smart grids combined with energy storage systems (ESS) are transforming how electricity is generated, distributed, and consumed — paving the way for a cleaner, more reliable energy future. What is a Smart Grid? A smart grid is an advanced electricity network that uses digital communication, sensors, and automation to monitor and manage the flow of electricity. Unlike traditional grids, smart grids can: Detect and respond to changes in electricity demand in real-time. Integrate renewable energy like solar, wind, and hydro. Improve efficiency by reducing energy losses. Key technologies in smart grids include: Smart meters for accurate energy usage tracking. Automated control systems to manage power distribution. Data analytics for predictive maintenance and demand forecasting...
Define class in Java
In java, a class is a template used to create object and define the data type. It acts as a building block for java language oriented systems. All java codes are defined in a class. A class has variables and methods.
Variables are attributes which define the state of class.
Methods are the place where the exact business logic has to be done. It contains a set of statements or instructions to satisfy the particular requirement.
Eg:
public class Addition // class name declaration
{
int a= 5; // variable declaration
int b= 5;
public void add()
{ // Method declaration
int c=a+b;
}
}
What do you mean by object ?
Object is a basic unit of Object oriented programming and represents the real life entities. A typical java program creates many objects, which interact each other by invoking methods. A java object is a combination of data and procedures working on the available data. An object has a state and behavior. The state of an object is stored in fields(variables),while methods (functions) displays the object behavior. Objects are created from templates known as classes. In java an object is created by using the keyword 'new'.
What is immutable object ?
Immutable object are java object whose object cannot be modified once created. Any modification in immutable object result in new object. For example String is immutable in java. Mostly immutable are also final in java, inorder to prevent sub class from over ridding methods in java which can compromise immutability. You can achieve same functionality by making members as non final but private and not modifying them except in constructor.