PayCraft Solutions Software Engineer Interview Questions and Answers

Q1. Tell me about yourself
Add your answer

Q1. 3 Question was there related to architecture and Computer networks.
Add your answer

Q1. Microservices and Monolith.
Add your answer
Q2. Leetcode hard Sum.
Add your answer

Q1. General fit to profile filtration
Add your answer

Q1. To the profile applied for
Add your answer
Q2. Explain an actual component
Ans. 
An actual component is a reusable and modular piece of software that performs a specific function within a larger system.
• Components are often designed to be independent and can be easily integrated into different systems.

• Examples of components include buttons, input fields, and dropdown menus in a user interface.

• Components can have their own logic, styling, and functionality, making them versatile building blocks for s
Answered by AI
Add your answer
Q3. Design the architecture
Ans. 
Designing the architecture for a software system involves planning the structure and components of the system.
• Identify the key components of the system and their interactions

• Choose appropriate technologies and frameworks for each component

• Consider scalability, performance, security, and maintainability

• Create a detailed diagram or documentation of the architecture
Answered by AI
Add your answer

Q1. Attitude towards work
Add your answer

1st test was aptitude and a easy coding test

The 2nd test was pure coding based test on hacker rank platform and contains 2 easy and 2 medium question

Q1. Round 3 was technical interview and asked from basics of computer programming and architecture
Add your answer

Q1. What is your family background?
Add your answer
Q2. Why are you looking for a change?
Add your answer
Q3. What are your strengths and weaknesses?
Add your answer
Q4. Tell me about yourself.
Add your answer

There were 45 questions in total: 20 questions on aptitude and 25 questions on basic C, C++, and Java.

Q1. TWO person was taking interview , one is HR AND TECHNICAL PERSON , THEY ASK ME TELL ME ABOUT YOUR SELF, WHAT ARE THE QUALITY OF TEAM LEADER, ARE YOU COMFORTABLE IF WE HIRE YOU AS A TESTER AND TECHNICAL ...read more
Add your answer

It was online 60min test.

It was offline 30 min test.

Q1. Oops,dbms,css,html,dsa,java.
Add your answer
Q2. It was very friendly .
Add your answer

Q1. What are the 4 principles of oops?
Ans. 
The 4 principles of OOP 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.

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

• Polymorphism allows objects to be treated as instances of their parent class.
Answered by AI
Add your answer
Q2. What is the difference between string buffer and string builder?
Ans. 
String buffer is synchronized and thread-safe, while string builder is not synchronized and faster.
• String buffer is synchronized, making it thread-safe for use in multi-threaded environments.

• String builder is not synchronized, providing better performance in single-threaded applications.

• String builder is faster than string buffer due to lack of synchronization overhead.

• Example: StringBuffer sb = new StringBuffer(); Str
Answered by AI
Add your answer
Q3. Why strings are immutable?
Ans. 
Strings are immutable in order to ensure data integrity and security.
• Immutable strings prevent accidental data modification, ensuring data integrity.

• Immutable strings enhance security by preventing unauthorized access or tampering.

• Immutable strings allow for more efficient memory management and optimization.

• Example: 'Hello' cannot be changed to 'Hella' directly, a new string must be created.
Answered by AI
Add your answer
Q4. What are the different types of exception in java?
Ans. 
There are two types of exceptions in Java: checked exceptions and unchecked exceptions.
• Checked exceptions are checked at compile time and must be handled using try-catch or throws keyword.

• Unchecked exceptions are not checked at compile time and include RuntimeException and its subclasses.

• Examples of checked exceptions include IOException, SQLException, and ClassNotFoundException.

• Examples of unchecked exceptions include...read more
Answered by AI
Add your answer
Q5. Explain linear search algorithm.
Ans. 
Linear search is a simple searching algorithm that sequentially checks each element in a list until a match is found.
• Iterate through each element in the list

• Compare the current element with the target value

• Return the index if a match is found, otherwise return -1
Answered by AI
Add your answer
Q6. Difference between JDK jvm and jre
Ans. 
JDK includes JRE and development tools, while JRE includes only the Java Runtime Environment.
• JDK stands for Java Development Kit, which includes JRE and development tools like compilers and debuggers.

• JRE stands for Java Runtime Environment, which includes JVM and libraries necessary to run Java applications.

• JVM stands for Java Virtual Machine, which is responsible for executing Java bytecode.

• JDK is used for developing ...read more
Answered by AI
Add your answer