Cement Digital Interview Questions and Answers

The shortest distance from the starting point is 5 km.

• The person walks 3 km towards west, forming a right angle triangle with the starting point.

• Then the person turns left and walks 4 km, forming another side of the right angle triangle.

• The shortest distance from the starting point is the hypotenuse of the right angle triangle, which can be calculated using Pythagoras theorem as sqrt(3^2 + 4^2) = 5 km.

Object-oriented programming concepts in Java include inheritance, encapsulation, polymorphism, and abstraction.

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

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides the implementation details and only shows