Knoldus Inc Interview Questions, Process, and Tips

OOPS is a programming paradigm based on objects that have properties and methods.

• Encapsulation: bundling of data and methods that operate on that data within a single unit

• Inheritance: ability of a class to inherit properties and methods from a parent class

• Polymorphism: ability of objects to take on many forms or have multiple behaviors

• Abstraction: hiding of complex implementation details and showing only the necessary ...read more

Explanation of Super, Throw, Final and Finally

• Super: used to call a method from a parent class

• Throw: used to throw an exception

• Final: used to declare a constant or to prevent method overriding

• Finally: used to execute code after try-catch block, regardless of exception

Real-time implementation of OOPs concept involves creating objects and classes that interact with each other in real-time applications.

• Real-time systems require objects to be created and destroyed dynamically

• Inheritance and polymorphism can be used to create flexible and extensible systems

• Real-time systems often use event-driven programming to respond to user input

• Examples include video games, financial trading systems

Java Garbage Collector automatically manages memory allocation and deallocation.

• Garbage Collector runs in the background and frees up memory by removing objects that are no longer in use.

• It uses different algorithms like Mark and Sweep, Copying, and Generational to manage memory.

• Java provides methods like System.gc() and Runtime.getRuntime().gc() to request garbage collection.

• Garbage Collector can cause performance iss...read more