Classplus Software Developer Interview Questions and Answers

Programming assessment tools used to objectively evaluate a candidates programing skills across parameters such as problem solving, coding aptitude and debugging

Q1. 1. Do you prefer working independently or as a part of a team
Ans. 
I value both independent work and teamwork, as each has unique benefits that contribute to successful software development.
• Independence: Working independently allows for deep focus and personal accountability, which can lead to innovative solutions. For example, I once developed a feature on my own that improved application performance by 30%.

• Team Collaboration: Collaborating with a team fosters diverse ideas and persp...read more
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Q2. As a part of an
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Medium to hard questions based on arrays, dp

Q1. Quick sort algorithm
Ans. 
Quick sort is a popular sorting algorithm that uses divide and conquer strategy.
• Divides array into smaller sub-arrays based on a pivot element

• Recursively sorts sub-arrays

• Combines sorted sub-arrays to get final sorted array

• Time complexity: O(n log n) on average, O(n^2) worst case

• Example: [3, 6, 8, 10, 1, 2, 1] -> [1, 1, 2, 3, 6, 8, 10]
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Q2. Modified rotate a matrix
Ans. 
Rotate a matrix by 90 degrees in place
• Transpose the matrix

• Reverse each row of the transposed matrix
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Q1. DSA problems on linked list, OOPs in depth programming, design pattens in Java. Some theoretical knowledge on OOPs and design patterns
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Normal concepts of apps only please be prepare on math,time,distance and other topics as well

They will check your problem solving ability in coding

Q1. What’s functional interface and uses. Server side and client side load balancing.
Ans. 
Functional interface is an interface with only one abstract method. Load balancing is used to distribute workload.
• Functional interface is used in lambda expressions in Java.

• Load balancing is used to distribute workload across multiple servers.

• Server side load balancing is done by a load balancer that sits between the client and server.

• Client side load balancing is done by the client application itself.

• Load balancing im...read more
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Q1. Transactional levels and propagation labels cases. Find the sequence of Substring duplicates counts.
Ans. 
The question is unclear and seems unrelated to software development.
• Ask for clarification on the question.

• Transactional levels and propagation labels are related to database transactions.

• Substring duplicates counts can be solved using string manipulation.

• It is unclear how these two topics are related.
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Basics of aptitude questions like relation,train,boat, probability,number series , and so on...

String occurrence, array list

Q1. Man crossing a bridge
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Q2. Wrong label on the boxes
Ans. 
The wrong label on the boxes can cause confusion and errors in the software development process.
• Ensure proper labeling of boxes to avoid confusion

• Double check labels before using them in the development process

• Communicate with team members to clarify any discrepancies in labeling
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There was an basic question in Aptitude

They told me to tell about social media goods and Bad in Future

Array Questions,Number Coadings,Basics of OOPS

Q1. Tell about yourself
Ans. 
I am a passionate software developer with experience in building web applications using various technologies.
• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MongoDB and MySQL

• Familiar with version control systems like Git and deployment tools like Heroku

• Strong problem-solving skills and ability ...read more
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Q2. They are logical question, Cake Question
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25 questions , 1 hour

1 coding , 2 logical question

Q1. For loop , 2 logical
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Q2. About final year projrct
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