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Showing posts from November, 2023

Artificial Intelligence Revolution

  Artificial Intelligence Revolution Java for beginners SSLC BIOLOGY MARCH 2025 SSLC SOCIAL SCIENCE-1-MARCH 2025 Super Solid-അതികരാവസ്ഥ The modern world is changing very fast, and at the forefront of this change is a revolutionary technology called Artificial Intelligence (AI). Today, the impact of AI can be seen everywhere in our environment, from smartphones and virtual assistants to educational methods. In such a situation, we need to consider how much AI is influencing the lives of young people. image courtesy-Pinterest.com Artificial intelligence offers numerous opportunities for young people, particularly in the fields of learning and research. Several online platforms assist students in learning subjects, completing homework, and conducting research. Additionally, AI is utilized as a teaching aid in classrooms, allowing teachers to provide more personalized attention to students. AI also benefits young people in the areas of creativity and innovation. For instance, it is u...

Advanced java interview-Q and A

 Core java basic interview questions and answers 1 . What is the purpose of the ThreadLocal class in Java, and how is it used for managing thread-local variables? Answer: ThreadLocal allows you to create variables that are local to each thread, ensuring thread safety without synchronization. Each thread accesses its own copy of the variable. 2 . Describe the Java 8 features related to functional programming, including lambdas and the Stream API? Answer: Java 8 introduced lambdas for defining functions, and the Stream API for working with collections in a functional style, enabling concise and expressive code. 3. What is a Java annotation processor, and how can it be used for code generation or validation? Answer: An annotation processor processes annotations at compile-time, allowing you to generate code, perform validations, or automate tasks based on annotations in your code. 4. Explain the principles of method chaining and builder design pattern in Java, and their benefits? A...

Advanced java for beginners-Q and A

 Java coding interview questions and answers for Freshers 1. Explain the super keyword in Java and its use in constructor chaining? Answer: super is used to call a superclass's constructor or access superclass members. It's commonly used in constructor chaining to call the superclass constructor from a subclass constructor. 2. What is the purpose of the synchronized keyword in Java, and how does it work? Answer: synchronized is used to create synchronized blocks or methods to provide thread-safety by allowing only one thread to access a synchronized block at a time. 3. What is the purpose of ‘this’ keyword in Java, and how is it used? Answer: The ‘this’ keyword refers to the current instance of a class and is often used to distinguish between instance variables and method parameters with the same name. 4. What are inner classes in Java , and why are they used? Answer: Inner classes are classes defined within another class. They are used for encapsulation, organization, a...

Advanced Java Questions and Answers

 Advanced Java Interview Questions & Answers | LinkedIn Java Programming Objective Type   Questions and Answers 1   What is the difference between wait() and sleep() methods in Java? Answer: wait() is a method for threads to wait for a condition to be met and releases the monitor, while sleep() simply pauses a thread for a specified time. 2. Explain the concept of garbage collection in Java? Answer: Garbage collection is the process of automatically reclaiming memory occupied by objects no longer in use, helping manage memory efficiently. 3. What is a Java annotation , and how are they used? Answer: Annotations provide metadata about code elements and are used for various purposes like code documentation and runtime processing. 4. What is the try -with-resources statement in Java, and how does it work? Answer: try-with-resources is used for automatic resource management, ensuring that resources like files or sockets are properly closed after use. 5. What ...

Listener interfaces and Methods in Java

 Listener interfaces and method in them EVENT HANDLING In java, each component fires an event whenever a user carries out a specific action.Each event is represented by a class.An event is an instance of the class Event which is in the AWT library.Whenever an event is fired, it is received by one or more listeners which act on that event.Thus,the source of the event and the place where the event is handled can be kept separate.This process is known as event delegation process.That is, when an event is fired on a component, it is passed to another component called the listener.This listener continuously listen for the event to be fired and takes up a specific task on receiving the signal.Each event listener is an object of a class that implements a particular type of listener interface.  Following are the steps for handling events: A class that extends a frame or an applet (any container) and implements a particular listener is created. The event with the component that fires t...