LTIMindtree Graduate Trainee Interview Questions and Answers for Freshers

Abstraction is the concept of hiding complex implementation details and showing only the necessary features. Interfaces define a contract for classes to implement.

• Abstraction allows us to focus on what an object does rather than how it does it

• Interfaces define a set of methods that a class must implement, without specifying how they are implemented

• Abstraction and interfaces help in achieving loose coupling and flexibility in software design

• Example: In a car, we don't need to ...read more

Polymorphism is the ability of a single function or method to operate on different types of data.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.

• Example: A method 'draw()' can be implemented differently in various subclasses of a 'S...read more

LtiMindtree is a global technology consulting and services company.

• Provides IT consulting, digital transformation, and technology services

• Offers solutions in areas such as cloud computing, data analytics, and artificial intelligence

• Works with clients across various industries including banking, healthcare, and retail

Multiple inheritance is a feature in object-oriented programming where a class can inherit attributes and methods from more than one parent class.

• Allows a class to inherit attributes and methods from multiple parent classes

• Can lead to the diamond problem where ambiguity arises if two parent classes have a method with the same name

• Languages like C++ support multiple inheritance

Cut the cake into 8 pieces by making 3 slices, creating 8 equal-sized slices.

• Make two vertical cuts to divide the cake into 4 equal quarters.

• Then make one horizontal cut through the middle of the cake to create 8 equal-sized slices.

• Each slice will be a triangular piece of cake.

OOP is used for organizing code into reusable objects, promoting code reusability, modularity, and easier maintenance.

• Encapsulation: Data and methods are bundled together in objects, promoting data security and code organization.

• Inheritance: Allows for the creation of new classes based on existing ones, promoting code reuse and reducing redundancy.

• Polymorphism: Objects can be treated as instances of their parent class, allowing for flexibility and extensibility.

• Modularity: Co...read more

Array lists are dynamic in size, while arrays have fixed sizes.

• Array lists can grow or shrink in size dynamically, while arrays have a fixed size.

• Array lists are implemented using dynamic arrays, while arrays are static data structures.

• Array lists provide methods for adding, removing, and accessing elements easily, while arrays require manual resizing and shifting of elements.

• Example: ArrayList<String> vs String[]

I am open to relocating for the right opportunity.

• I am willing to move to different locations for career growth

• I understand the importance of being flexible with relocation for job opportunities

• I have experience moving for previous job opportunities, such as relocating for internships or projects