Infiniti Software Solutions Software Trainee Interview Questions and Answers

Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.

• Types of inheritance: single inheritance, multiple inheritance, multilevel inheritance, hierarchical inheritance

• Single inheritance: a class inherits from only one parent class

• Multiple inheritance: a class inherits from multiple parent classes

• Multilevel inheritance: a class inherits from a parent class, which in turn inherits from another parent class

• Hiera...read more

Linkedlist is a data structure where elements are stored in nodes with pointers to the next node. Arraylist is a dynamic array that can grow or shrink in size.

• Linkedlist allows for efficient insertion and deletion of elements anywhere in the list, while Arraylist is faster for accessing elements by index.

• Linkedlist uses more memory due to the overhead of storing pointers, while Arraylist uses contiguous memory for elements.

• Example: Linkedlist - 1 -> 2 -> 3 -> 4, Arraylist - [...read more

Abstraction is the concept of hiding complex implementation details and showing only the necessary features of an object or system.

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

• It helps in reducing complexity and improving efficiency

• For example, a car dashboard abstracts the internal workings of the car and provides only essential information like speed and fuel level

The code given in the coding round is a program that sorts an array of integers in ascending order using a specific sorting algorithm.

• The code likely uses a sorting algorithm such as bubble sort, selection sort, or insertion sort to arrange the integers in the array.

• The code may include functions for comparing and swapping elements in the array.

• The code may have a loop structure to iterate through the array multiple times until it is fully sorted.

OOPs concepts refer to the principles of Object-Oriented Programming, including 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.