Vital Flavours Interview Questions and Answers

Program to print a pattern of stars in a specific shape.

• Use nested loops to print the stars in the desired pattern.

• The number of stars in each row increases by one until the middle row, then decreases by one.

• The number of spaces between the stars decreases by one until the middle row, then increases by one.

Encapsulation is the process of hiding implementation details and providing a public interface for accessing the functionality.

• Encapsulation helps in achieving data abstraction and information hiding

• It prevents unauthorized access to the internal details of an object

• It allows for better control over the data and its behavior

• Example: A class with private variables and public methods to access them

Classes are templates for creating objects, functions are blocks of code that perform a specific task, and objects are instances of a class.

• Classes define the properties and methods of an object

• Functions are reusable blocks of code that can take input and return output

• Objects are created from a class and have their own unique properties and methods

• Example: Class - Car, Function - startEngine(), Object - myCar

Program to check if a given string is a palindrome

• Remove all non-alphanumeric characters from the string

• Convert the string to lowercase

• Reverse the string and compare with the original string

Digital modulation techniques are methods used to encode digital information onto an analog carrier signal.

• Amplitude Shift Keying (ASK)

• Frequency Shift Keying (FSK)

• Phase Shift Keying (PSK)

• Quadrature Amplitude Modulation (QAM)

• Orthogonal Frequency Division Multiplexing (OFDM)

When a device is powered on, several processes occur including booting up the operating system, initializing hardware components, loading necessary drivers, and launching user interface.

• Booting up the operating system

• Initializing hardware components

• Loading necessary drivers

• Launching user interface

SDLC stands for Software Development Life Cycle, which is a process used to design, develop, and maintain software.

• SDLC is a framework that consists of several phases such as planning, analysis, design, implementation, testing, and maintenance.

• It helps to ensure that the software is developed efficiently, meets the requirements of the stakeholders, and is of high quality.

• Each phase of the SDLC has its own set of deliverables, which are reviewed and approved before moving on t...read more

Java is a high-level, object-oriented programming language used to develop applications for various platforms.

• Java is platform-independent and can run on any device with a Java Virtual Machine (JVM)

• It is known for its security features and is commonly used for developing enterprise-level applications

• Java is used for developing Android applications, web applications, and desktop applications

• It was developed by James Gosling at Sun Microsystems in the mid-1990s