Shiva Automobiles Interview Questions and Answers

Friend functions are functions that are not members of a class but have access to the private and protected members of the class.

• Friend functions are declared with the keyword 'friend' in the class definition.

• They can access private and protected members of the class they are friends with.

• Friend functions are not member functions of the class.

• They are often used to allow external functions or classes to access private members of a class.

A constructor is a special type of method that is automatically called when an object is created in a class.

• Constructors have the same name as the class they belong to.

• They are used to initialize the object's state.

• Constructors can have parameters to set initial values for object properties.

• Example: public class Car { public Car(String color) { this.color = color; } }

Joins in SQL are used to combine rows from two or more tables based on a related column between them.

• Joins are used to retrieve data from multiple tables based on a related column

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• RIGHT JOIN returns all rows from the right table and the matched rows f...read more

OOPS pillars are the four main concepts of Object-Oriented Programming: Inheritance, Encapsulation, Abstraction, and Polymorphism.

• Inheritance: Allows a class to inherit properties and behavior from another class. Example: Animal class can be inherited by Dog class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Using private variables and public methods in a class.

• Abstraction: Hiding the complex implementation details and showing...read more

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.

• Check if the number is less than 2, if yes then it is not prime

• Loop through numbers from 2 to square root of the number and check if the number is divisible by any of them

• If the number is not divisible by any number in the loop, then it is prime