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CodeClouds Interview Questions and Answers
22 Interview questions
A class in Java is defined using the 'class' keyword followed by its name and body containing fields and methods.
Classes are defined using the 'class' keyword: 'class ClassName {}'
A class can contain fields (variables) and methods (functions) to define its behavior.
Example: 'class Car { String color; void drive() { ... } }'
Classes can also extend other classes using 'extends' for inheritance.
Example: 'class Electr...
Java has three primary loop types: for, while, and do-while, each serving different iteration needs.
for loop: Used when the number of iterations is known. Example: for (int i = 0; i < 5; i++) { System.out.println(i); }
while loop: Used when the number of iterations is not known. Example: int i = 0; while (i < 5) { System.out.println(i); i++; }
do-while loop: Similar to while, but guarantees at least one iterat...
Java was developed by James Gosling and his team at Sun Microsystems in the mid-1990s.
James Gosling is known as the 'father of Java'.
Java was initially called 'Oak' before being renamed.
The first public release of Java was in 1995.
Java was designed to be platform-independent, using the 'Write Once, Run Anywhere' (WORA) principle.
Delete removes rows from a table while truncate removes all rows from a table.
Delete is a DML command while truncate is a DDL command.
Delete operation can be rolled back while truncate operation cannot be rolled back.
Delete operation fires triggers on each row deletion while truncate operation does not fire triggers.
What people are saying about CodeClouds
Using recursion to print numbers from 1 to 100 without a loop
Create a recursive function that takes a number as input and prints it
Call the function with 1 as the initial input and increment the input by 1 in each recursive call
Stop the recursion when the input reaches 100
2NF eliminates partial dependencies, while 3NF eliminates transitive dependencies.
2NF eliminates partial dependencies by ensuring all non-key attributes are fully functionally dependent on the primary key.
3NF eliminates transitive dependencies by ensuring that non-key attributes are not dependent on other non-key attributes.
Example: In a table with columns A, B, and C where A is the primary key, if B depends on A ...
The data structure used to reverse an array is a stack.
A stack data structure can be used to reverse an array by pushing each element onto the stack and then popping them off in reverse order.
Example: If we have an array of strings ['apple', 'banana', 'cherry'], we can reverse it using a stack to get ['cherry', 'banana', 'apple'].
To upload files in a Node.js application, you can use the 'multer' middleware package.
Install 'multer' package using npm
Set up multer middleware in your Node.js application
Create a route in your application to handle file uploads
Use 'multer' to process and save uploaded files to a specified destination
Event Loop in NodeJS manages asynchronous operations by executing callback functions when certain events occur.
Event Loop continuously checks the Call Stack and Callback Queue to see if there are any functions that need to be executed.
If the Call Stack is empty, Event Loop will move functions from the Callback Queue to the Call Stack for execution.
Event Loop allows NodeJS to handle multiple requests concurrently w...
Traits are reusable code blocks that can be mixed into classes, while interfaces define a contract that a class must follow.
Traits can be used to add methods to a class without inheritance
Interfaces define a set of methods that a class must implement
A class can implement multiple interfaces, but can only inherit from one class
Traits promote code reusability and reduce code duplication
CodeClouds Interview Experiences
42 interviews found
dipnarayan sen
General Computer Science Questions.
(3 Questions)
- Q1. 2NF and 3NF difference
- Ans.
2NF eliminates partial dependencies, while 3NF eliminates transitive dependencies.
2NF eliminates partial dependencies by ensuring all non-key attributes are fully functionally dependent on the primary key.
3NF eliminates transitive dependencies by ensuring that non-key attributes are not dependent on other non-key attributes.
Example: In a table with columns A, B, and C where A is the primary key, if B depends on A and C...
- Q2. Alternative of using loop to print 1 to 100
- Ans.
Using recursion to print numbers from 1 to 100 without a loop
Create a recursive function that takes a number as input and prints it
Call the function with 1 as the initial input and increment the input by 1 in each recursive call
Stop the recursion when the input reaches 100
- Q3. Delete and Truncate Difference
- Ans.
Delete removes rows from a table while truncate removes all rows from a table.
Delete is a DML command while truncate is a DDL command.
Delete operation can be rolled back while truncate operation cannot be rolled back.
Delete operation fires triggers on each row deletion while truncate operation does not fire triggers.
Prithul Paul
Selected
I appeared for an interview in Aug 2024.
(1 Question)
- Q1. Basic questions on Core PHP, Laravel, MySql and jQuery.
(1 Question)
- Q1. Advanced questions on core php, laravel, wordpress, mysql, jqyery.
MCQs on core php and laravel. It was quite hard and confussing.
(1 Question)
- Q1. Normal communications
Anonymous
(1 Question)
- Q1. Which data structure is used to reverse an array?
- Ans.
The data structure used to reverse an array is a stack.
A stack data structure can be used to reverse an array by pushing each element onto the stack and then popping them off in reverse order.
Example: If we have an array of strings ['apple', 'banana', 'cherry'], we can reverse it using a stack to get ['cherry', 'banana', 'apple'].
Selected
I applied via Naukri.com and was interviewed in May 2024. There were 3 interview rounds.
(2 Questions)
- Q1. Questions regarding javascript
- Q2. Questions regarding php and wordpress
(2 Questions)
- Q1. Questions regarding Node js
- Q2. Questions regarding wordpress
(1 Question)
- Q1. Salary discussion
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. What is Inheritance ? How It Is Executed In program?
- Q2. Class is written By Which Method?
- Ans.
A class in Java is defined using the 'class' keyword followed by its name and body containing fields and methods.
Classes are defined using the 'class' keyword: 'class ClassName {}'
A class can contain fields (variables) and methods (functions) to define its behavior.
Example: 'class Car { String color; void drive() { ... } }'
Classes can also extend other classes using 'extends' for inheritance.
Example: 'class ElectricCar...
- Q3. Tell Me About The Different Loops in Java?
- Ans.
Java has three primary loop types: for, while, and do-while, each serving different iteration needs.
for loop: Used when the number of iterations is known. Example: for (int i = 0; i < 5; i++) { System.out.println(i); }
while loop: Used when the number of iterations is not known. Example: int i = 0; while (i < 5) { System.out.println(i); i++; }
do-while loop: Similar to while, but guarantees at least one iteration. ...
- Q4. Who Discovered the java ?
- Ans.
Java was developed by James Gosling and his team at Sun Microsystems in the mid-1990s.
James Gosling is known as the 'father of Java'.
Java was initially called 'Oak' before being renamed.
The first public release of Java was in 1995.
Java was designed to be platform-independent, using the 'Write Once, Run Anywhere' (WORA) principle.
(1 Question)
- Q1. It was mostly based on SQL and php
(1 Question)
- Q1. Viva technical interview
(1 Question)
- Q1. Another viva technical interview
(1 Question)
- Q1. Interview with COO
I applied via LinkedIn and was interviewed in Nov 2024. There was 1 interview round.
Basics of JS and some coding challenges related to array
(2 Questions)
- Q1. Introduce yourself
- Ans.
I am a seasoned HR professional with 10+ years of experience in recruitment, employee relations, and performance management.
Bachelor's degree in Human Resources Management
SHRM-CP certification
Led successful recruitment campaigns resulting in 20% increase in employee retention
Implemented training programs that improved employee satisfaction by 15%
- Q2. Why you want to join Codeclouds
- Ans.
I want to join Codeclouds because of their reputation for innovation and growth opportunities.
Impressed by Codeclouds' track record of innovation in software development
Excited about the potential for growth and advancement within the company
Positive reviews from current employees about the company culture and work environment
Selected
I appeared for an interview before Jan 2024.
(2 Questions)
- Q1. Inheritance related questions
- Q2. Base web development related questions
(2 Questions)
- Q1. In depth oops question
- Q2. Database related questions
(2 Questions)
- Q1. Basic questions
- Q2. Expected salary
- Ans.
My expected salary is based on my experience, skills, and the market rate for Senior Engineers.
Consider my years of experience in the industry
Take into account my specialized skills and certifications
Research the current market rate for Senior Engineers in this location
Negotiable based on benefits package offered
Web development related coding questions
They asked me to design a template.
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Web Developer
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