Hexaware Technologies Graduate Trainee Interview Questions and Answers

To increase array size, you can create a new array with a larger size and copy the elements from the original array to the new array.

• Create a new array with a larger size

• Copy elements from the original array to the new array

• Update the reference to the new array

The pillars of OOPs concept are Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.

Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.

• Overloading is a compile-time polymorphism while overriding is a runtime polymorphism.

• Overloading is used to provide different ways of calling the same method while overriding is used to provide a specific implementation of a method in a subclass.

• Overloading is achieved within the same c...read more

No, we cannot rollback after commit in a database.

• Once a transaction is committed, changes are permanent and cannot be undone.

• Rollback can only be done before committing a transaction.

• Committing a transaction makes the changes final and persistent in the database.

• Rollback is used to undo changes made in a transaction before committing.

I chose Hexaware because of their strong reputation in the IT industry and their focus on innovation and career development.

• Hexaware has a strong reputation in the IT industry

• They are known for their innovative solutions and cutting-edge technologies

• Hexaware offers excellent career development opportunities

• Their company culture and values align with my own

• I was impressed by the positive feedback from current and former employees

• Hexaware has a global presence and works with to...read more

OOPs concepts refer to Object-Oriented Programming concepts which include inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.