Tech Mahindra Java Developer Interview Questions and Answers for Experienced

C# concepts including abstraction, interface, abstract method, abstract class, polymorphism, encapsulation, inheritance, and serialization.

• Abstraction: hiding implementation details

• Interface: defining a contract for behavior

• Abstract method: method without implementation

• Abstract class: class with one or more abstract methods

• Polymorphism: ability of objects to take on multiple forms

• Encapsulation: bundling data and behavi...read more

Version control is essential for managing code changes and collaborating with team members.

• Version control allows for tracking changes made to code over time.

• It enables collaboration between team members by allowing multiple people to work on the same codebase simultaneously.

• It provides a way to revert to previous versions of code if necessary.

• Popular version control systems include Git, SVN, and Mercurial.

JVM stands for Java Virtual Machine. It is an abstract machine that enables a computer to run Java programs.

• JVM is responsible for interpreting the compiled Java code and executing it on the computer.

• It provides a platform-independent environment for Java programs to run on different operating systems.

• JVM has various components like class loader, bytecode verifier, and execution engine.

• Examples of JVM-based languages i

Byte code is a compiled code that can be executed on any platform with the help of a virtual machine.

• Byte code is an intermediate code that is generated by a compiler.

• It is platform-independent and can be executed on any platform with the help of a virtual machine.

• Examples of virtual machines include Java Virtual Machine (JVM) and .NET Common Language Runtime (CLR).