10+ Supremology Software Services Interview Questions and Answers

Java oops concepts include encapsulation, inheritance, abstraction, and polymorphism. Overloading is a way to define multiple methods with the same name but different parameters.

• Encapsulation: bundling data and methods that operate on that data within a single unit

• Inheritance: creating new classes from existing ones

• Abstraction: hiding implementation details and showing only the necessary information

• Polymorphism: using a single interface to represent multiple types

• Overloading:...read more

Encapsulation in Java is achieved by using access modifiers and creating classes with private fields and public methods.

• Use access modifiers such as private, public, and protected to restrict access to fields and methods

• Create classes with private fields and public methods to control access to data

• Encapsulation helps to maintain data integrity and prevent unauthorized access to data

• Example: class Person { private String name; public void setName(String name) { this.name = nam...read more

The pillars of OOPS are Inheritance, Encapsulation, Abstraction, and Polymorphism.

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

• Encapsulation restricts access to certain components within a class, protecting the data from outside interference.

• Abstraction hides the complex implementation details and only shows the necessary features to the user.

• Polymorphism allows objects to be treated as instances of their parent class, enabling flexibility ...read more

Approach: Create a program to clear a grid by moving a ball in all 8 directions and clearing cells at the center.

• Create a grid with values in each cell

• Randomly select a starting point and direction for the ball

• Move the ball in all 8 directions, clearing cells at the center

• Reroute the ball when it reaches the edge

• Continue until all cells are cleared

An IEnumerator in C# is used to iterate over a collection of objects one at a time, allowing for more efficient memory usage and performance.

• IEnumerator is used to implement custom iterators in C# by defining a method with a yield return statement.

• Each time the iterator is called, it returns the next value in the sequence defined by the yield return statements.

• IEnumerators can be used in foreach loops to iterate over the values returned by the iterator.

Create a new array with sums of all integers smaller than each element in the input array.

• Iterate through the input array and for each element, calculate the sum of all integers smaller than the current element.

• Populate the new array with these sums.

• Use a lambda expression to simplify the code.

Integration of SQL with application and network troubleshooting

• Ensure proper network connectivity between application and SQL server

• Check SQL server logs for any errors or issues

• Verify SQL server configuration and permissions

• Test SQL queries and data retrieval from application

• Use network monitoring tools to identify and resolve network issues

I use design patterns such as MVC, Observer, and Factory in my games for better organization and scalability.

• MVC (Model-View-Controller) for separating game logic, user interface, and data

• Observer for handling events and notifications between game components

• Factory for creating objects without specifying the exact class

A linked list is a data structure where each element points to the next element in the sequence.

• Consists of nodes connected by pointers

• Allows for dynamic size and efficient insertion/deletion

• Examples: singly linked list, doubly linked list

Joining two tables in SQL using JOINs to combine data based on a related column

• Use INNER JOIN to return rows when there is at least one match in both tables

• Use LEFT JOIN to return all rows from the left table and the matched rows from the right table

• Use RIGHT JOIN to return all rows from the right table and the matched rows from the left table

• Use FULL JOIN to return rows when there is a match in one of the tables

Check if a number is a power of 2 or not

• A number is a power of 2 if it has only one bit set to 1

• Use bitwise operations to check if the number is a power of 2

• If the number is a power of 2, it will be greater than 0 and have only one bit set to 1