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Collabera Technologies Java Developer Interview Questions and Answers
Collabera Technologies Java Developer Interview Experiences
3 interviews found
sudarshan kendre
Java basic problems , Array , Collections, String , Java 8 , Spring Boot,String MVC
(2 Questions)
- Q1. Tell me about your Project ?
- Q2. Write a code which count the number of String (words) occurrence in sentence ?
- Ans.
Count the occurrence of each word in a sentence using Java code.
Split the sentence into an array of words using split() method.
Create a HashMap to store each word and its count.
Iterate through the array and update the count in the HashMap.
Print the word and its count at the end.
Interview Preparation Tips
Skills evaluated in this interview
Anonymous
I applied via Company Website and was interviewed in Sep 2022. There were 3 interview rounds.
I have done bsc info tech and i finished c,c++,java,java script,html
(2 Questions)
- Q1. What's yours strength
- Ans. I am self-motivated ,being punctual,i done my work at given time
- Q2. Why did i select you
Interview Preparation Tips
- C++
- Java
- HTML
- RMI
Believe god
Help others
Don't make excuse
Never delay tha work project
Don't fear
I applied via LinkedIn and was interviewed in Nov 2021. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. What is java
- Ans.
Java is a high-level programming language known for its platform independence and object-oriented approach.
Java is widely used for developing desktop, web, and mobile applications.
It follows the 'write once, run anywhere' principle, allowing code to be executed on any platform with a Java Virtual Machine (JVM).
Java supports multithreading, exception handling, and automatic memory management.
It has a vast standard libra...
- Q2. It is simple software
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Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
I applied via Naukri.com
(7 Questions)
- Q1. What is OOP Concepts
- Ans.
OOP Concepts refer to the principles of Object-Oriented Programming, including encapsulation, inheritance, and polymorphism.
Encapsulation: Bundling data and methods that operate on the data into a single unit (object)
Inheritance: Allowing a new class to inherit properties and behavior from an existing class
Polymorphism: The ability for objects of different classes to respond to the same message in different ways
- Q2. What is Method Overloading and Method Overriding
- Ans.
Method overloading is when multiple methods have the same name but different parameters. Method overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class.
Method overloading involves creating multiple methods in the same class with the same name but different parameters.
Method overriding occurs in a subclass that provides a specific implementation of a meth...
- Q3. Servlet Life Cycle
- Q4. Spring boot annotations
- Q5. What you know about Multithreading
- Ans.
Multithreading is a programming concept where multiple threads run concurrently within a single process.
Allows for parallel execution of tasks
Improves performance by utilizing multiple CPU cores
Requires synchronization to prevent race conditions
Examples: creating a GUI application with responsive UI, processing multiple requests simultaneously in a web server
- Q6. What are design patterns you follow in microservices architecture
- Ans.
Some design patterns in microservices architecture include Service Registry, Circuit Breaker, and API Gateway.
Service Registry: Allows services to dynamically discover and communicate with each other.
Circuit Breaker: Prevents cascading failures by failing fast and providing fallback mechanisms.
API Gateway: Acts as a single entry point for clients to access multiple microservices.
Event Sourcing: Stores the state of a sy...
- Q7. What is JDK Vs JIT
- Ans.
JDK is Java Development Kit, which includes tools for developing Java applications. JIT is Just-In-Time compiler, which compiles Java bytecode to native machine code at runtime.
JDK is a software development kit used for developing Java applications.
JIT is a component of the Java Virtual Machine (JVM) that improves the performance of Java applications by compiling bytecode to native machine code at runtime.
JDK includes ...
Interview Preparation Tips
Skills evaluated in this interview
20 aptitude,20 comunication,4 program questions
General topics . topics about online class vs office line class
(1 Question)
- Q1. In this round also they mainly check communication.after that basic questions about the what you put on your resume
(1 Question)
- Q1. General round. In this round they told about the company and bond
I applied via Company Website and was interviewed in Mar 2024. There were 5 interview rounds.
30 multiple choice questions
Two coding questions
(1 Question)
- Q1. Oops questions like main principles of oops
(1 Question)
- Q1. Deep in project
(1 Question)
- Q1. Self intro, family background,some hr questions
I applied via LinkedIn and was interviewed in Mar 2024. There was 1 interview round.
(1 Question)
- Q1. Explain your Project. What features you have made Git related questions like code merge pull Jira tool Java questions mostly from collectiions Springboot related question Then some design pattern.
Interview Preparation Tips
Kannan
I applied via Walk-in and was interviewed in Aug 2023. There were 3 interview rounds.
Basic aptitude questions
Basic coding questions
(4 Questions)
- Q1. Asking basic questions
- Q2. Java pattern program
- Q3. String in build program
- Ans.
String in build program refers to the process of concatenating multiple strings to create a final output.
Use StringBuilder or StringBuffer for efficient string concatenation.
Avoid using '+' operator for concatenating large number of strings.
Consider using String.format() for formatting strings with placeholders.
- Q4. Java basic concepts
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Skills evaluated in this interview
Shivani Wankhade
I applied via Naukri.com and was interviewed in Oct 2022. There was 1 interview round.
(2 Questions)
- Q1. Annotations used in Springboot project
- Ans.
Annotations are used in Springboot project for various purposes such as dependency injection, mapping requests, and handling exceptions.
Annotations are used to provide metadata to the Spring framework.
Some commonly used annotations in Springboot are @Autowired, @RestController, @RequestMapping, @ExceptionHandler, and @Service.
Annotations help in reducing the boilerplate code and make the code more readable and maintain...
- Q2. Core java question on exception handling, methods, OOPS
Interview Preparation Tips
Skills evaluated in this interview
Java Developer Interview Questions & Answers
HTC Global Services
NAGUL K S 20CSR131
posted on 21 Sep 2024
I applied via LinkedIn and was interviewed in Mar 2024. There were 2 interview rounds.
General Aptitude round based on numbers,verbal,time
Any language u can use but need to solve 5 problems
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