Upload Button Icon Add office photos

Collabera Technologies

Compare button icon Compare button icon Compare

Filter interviews by

Collabera Technologies Java Developer Interview Questions and Answers

Updated 14 Jun 2023

Collabera Technologies Java Developer Interview Experiences

3 interviews found

Java Developer Interview Questions & Answers

user image sudarshan kendre

posted on 14 Jun 2023

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

Java basic problems , Array , Collections, String , Java 8 , Spring Boot,String MVC

Round 3 - Technical 

(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.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on Basic JAVA , Advance Java and Java 8 also Spring , SQL and Hibernate

Skills evaluated in this interview

I applied via Company Website and was interviewed in Sep 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Case Study 

I have done bsc info tech and i finished c,c++,java,java script,html

Round 3 - HR 

(2 Questions)

  • Q1. What's yours strength
  • Ans. I am self-motivated ,being punctual,i done my work at given time
  • Answered Anonymously
  • Q2. Why did i select you

Interview Preparation Tips

Topics to prepare for Collabera Technologies Java Developer interview:
  • C++
  • Java
  • HTML
  • RMI
Interview preparation tips for other job seekers - Don't panic
Believe god
Help others
Don't make excuse
Never delay tha work project
Don't fear

Java Developer Interview Questions Asked at Other Companies

asked in Deloitte
Q1. Sort 0 and 1 Problem Statement Given an integer array ARR of size ... read more
Q2. Parent class has run() and walk() . Parent run() - calls walk() C ... read more
asked in Infosys
Q3. Which should be preferred between String and StringBuffer when th ... read more
asked in Deloitte
Q4. Convert BST to Greater Sum Tree Given a Binary Search Tree (BST) ... read more
Q5. 2. What will happen if hashcode only returns a constant? How will ... read more

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...

  • Answered by AI
  • Q2. It is simple software

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared for interview

Skills evaluated in this interview

Interview questions from similar companies

I was interviewed in Apr 2017.

Interview Questionnaire 

2 Questions

  • Q1. Java questions...
  • Q2. Tell me about urself and about us family and all
  • Ans. 

    I am a software developer with a passion for coding and problem-solving. My family is supportive and has always encouraged my career in tech.

    • Experienced software developer

    • Passionate about coding and problem-solving

    • Supportive family that encourages my career in tech

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Easy questions are there
Duration: 1 hour
Total Questions: 90

Round: Group Discussion
Experience: 12 members are there only 9 got selected
Tips: Be confident in urself and specially work in Communication skills
Duration: 15 minutes

Round: Technical Interview
Experience: Asking all the concepts of Java like oops collections threads
Tips: Prepare well on Java

Round: HR Interview
Experience: Everything was Gud but due to my certificate problem I got rejected.. Otherwise everything is good.
Tips: Be confident

College Name: C. V. Raman College of Engineering

I was interviewed in Jul 2017.

Interview Questionnaire 

6 Questions

  • Q1. What is autoboxing and unboxing
  • Ans. 

    Autoboxing is the automatic conversion of primitive data types to their corresponding object wrapper classes.

    • Autoboxing is useful when working with collections that require objects instead of primitives.

    • Example: int i = 5; Integer j = i; //autoboxing

    • Unboxing is the opposite of autoboxing, where an object of a wrapper class is converted back to its corresponding primitive type.

    • Example: Integer j = 5; int i = j; //unboxi

  • Answered by AI
  • Q2. What is typecasting UP AND DOWN
  • Ans. 

    Typecasting up and down refers to converting a variable of one data type to another data type of higher or lower precision.

    • Typecasting up involves converting a variable of lower precision to a variable of higher precision, such as converting an int to a double.

    • Typecasting down involves converting a variable of higher precision to a variable of lower precision, such as converting a double to an int.

    • Typecasting can resul...

  • Answered by AI
  • Q3. How do you iterate map
  • Ans. 

    To iterate a map in Java, use a for-each loop or an iterator.

    • Use the entrySet() method to get a set of key-value pairs

    • For-each loop: for(Map.Entry entry : map.entrySet())

    • Iterator: Iterator> iterator = map.entrySet().iterator();

    • Use hasNext() and next() methods to iterate through the map

  • Answered by AI
  • Q4. Types of synchronisation in java
  • Ans. 

    Types of synchronization in Java

    • Synchronized methods

    • Synchronized statements

    • ReentrantLock

    • Semaphore

    • CountDownLatch

  • Answered by AI
  • Q5. Access modifiers in method overriding
  • Ans. 

    Access modifiers in method overriding

    • Access modifiers in the overriding method cannot be more restrictive than the overridden method

    • The access modifier can be less restrictive or the same as the overridden method

    • Private methods cannot be overridden

    • Examples: public method can be overridden by public or protected method, but not by private method

  • Answered by AI
  • Q6. Covarient return type

Skills evaluated in this interview

I was interviewed before Mar 2021.

Round 1 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was an easy round which went really smooth.

  • Q1. 

    Nth Fibonacci Number Problem Statement

    Calculate the Nth term in the Fibonacci sequence, where the sequence is defined as follows: F(n) = F(n-1) + F(n-2), with initial conditions F(1) = F(2) = 1.

    Input:

    ...
  • Ans. 

    Calculate the Nth Fibonacci number efficiently using dynamic programming.

    • Use dynamic programming to store previously calculated Fibonacci numbers to avoid redundant calculations.

    • Start with base cases F(1) and F(2) as 1, then iteratively calculate F(n) using F(n-1) and F(n-2).

    • Ensure the input N is within the constraints 1 <= N <= 10000.

    • Example: For N = 5, the 5th Fibonacci number is 5 (1, 1, 2, 3, 5).

  • Answered by AI
  • Q2. 

    Prime Numbers Problem Statement

    Given a positive integer N, your task is to determine and return all prime numbers less than or equal to N.

    Input:

    N = 10

    Output:

    2 3 5 7

    Example:

    Input:
    N = 20
    Out...
  • Ans. 

    Implement a function to return all prime numbers less than or equal to a given positive integer N.

    • Create a function that takes a positive integer N as input

    • Iterate from 2 to N and check if each number is prime

    • Use a helper function to determine if a number is prime

    • Return an array of all prime numbers less than or equal to N

  • Answered by AI
  • Q3. What is a merge join in SQL?
  • Ans. 

    A merge join in SQL is a method of combining two sorted datasets by matching corresponding rows based on a specified condition.

    • Merge join is used when joining two large datasets that are already sorted.

    • It is more efficient than other join methods like nested loop join or hash join for sorted datasets.

    • The join condition must be an equality condition.

    • Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.i

  • Answered by AI
Round 2 - HR 

Round duration - 30 minutes
Round difficulty - Easy

The round went excellent. I really enjoyed it. Just be confident about whatever you answer

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPALarsen & Toubro Infotech (LTI) interview preparation:Topics to prepare for the interview - Database, Basic C/C++, Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 3 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

I was interviewed before Mar 2021.

Round 1 - Face to Face 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This round went well. Interview depends on your basic knowledge of C/C++.

  • Q1. 

    Matrix Multiplication Task

    Given two sparse matrices MAT1 and MAT2 of integers with dimensions 'N' x 'M' and 'M' x 'P' respectively, the goal is to determine the resulting matrix produced by their multipl...

  • Ans. 

    Implement a function to multiply two sparse matrices and return the resulting matrix.

    • Create a function that takes two sparse matrices as input and returns the resulting matrix after multiplication

    • Iterate through the non-zero elements of the matrices to perform the multiplication efficiently

    • Handle the edge cases such as empty matrices or matrices with all zero elements

    • Ensure the dimensions of the matrices are compatible

  • Answered by AI
  • Q2. 

    Problem: Count Even or Odd in Array

    Tanmay and Rohit are best buddies. Tanmay gives Rohit a challenge involving an array of N natural numbers. The task is to perform and answer a series of queries on the ...

  • Ans. 

    Count the number of even or odd numbers in a range of an array based on given queries.

    • Create an array to store the input numbers.

    • Iterate through the queries and update or count even/odd numbers based on the query type.

    • Output the count of even or odd numbers for each query of type 1 or 2.

  • Answered by AI
Round 2 - HR 

Round duration - 30 minutes
Round difficulty - Easy

Typical HR round with behavioral problems.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPALarsen & Toubro Infotech (LTI) interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 3 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

Java Developer Interview Questions & Answers

Capgemini user image Aditya Karmarkar

posted on 27 Aug 2015

Interview Preparation Tips

General Tips: Speak in English, as much as you can also listen to every good English speaker.
Skill Tips: Keep your ears open as they ask what you know but in a manner in which you don't know ( don't expect)
Skills: communication skills, java , database, computer networking
College Name: Vidyalankar Institute Of Technology

I was interviewed before Sep 2016.

Interview Preparation Tips

Round: Group Discussion
Experience: Interview was scheduled in Grab Job consultancy. In that, a class room, where we all asked to sit and interviewer was sitting in front and asked to speak one by one on the topic traffic situation in Hyderabad.
Tips: Just speak once two to three lines. Don't rush to speak. Take ur time and don't try speak repeatedly.
Duration: 35 minutes

Round: Technical Interview
Experience: System based test. Easy question from java , c, data structure.

Round: HR Interview
Experience: Not held because already we got too late.

Skills: Proficiency In English, Basic Coding
College Name: Medak College of engineering

I was interviewed in Mar 2017.

Interview Questionnaire 

5 Questions

  • Q1. Oops concepts in Java?
  • Ans. 

    Oops concepts in Java

    • Encapsulation - hiding implementation details

    • Inheritance - reusing code and creating parent-child relationships

    • Polymorphism - multiple forms of a method or object

    • Abstraction - creating abstract classes and interfaces

    • Example: Encapsulation - using private variables and public methods

    • Example: Inheritance - creating a subclass that inherits from a superclass

    • Example: Polymorphism - using method overloa...

  • Answered by AI
  • Q2. Altering columns in Databases?
  • Ans. 

    Altering columns in databases involves modifying the structure of a table by adding, deleting or modifying columns.

    • Use ALTER TABLE statement to modify columns

    • Add new columns using ADD COLUMN

    • Delete columns using DROP COLUMN

    • Modify columns using MODIFY COLUMN

    • Changing column data type may result in data loss

  • Answered by AI
  • Q3. Asked some queries in SQL
  • Q4. Reversing a number in java?
  • Ans. 

    Reversing a number in Java

    • Convert the number to a string

    • Use StringBuilder to reverse the string

    • Convert the reversed string back to a number

  • Answered by AI
  • Q5. Extracting words from a line in java?
  • Ans. 

    To extract words from a line in Java, split the line using whitespace as delimiter.

    • Use the split() method of String class

    • Pass the whitespace regex as argument to split() method

    • Iterate over the resulting array to get individual words

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Experience: Started with the question "Tell me about yourself". Asked me about Core Java. Asked to solve some questions related to Java and SQL.
Tips: Be prepared with high knowledge in Java, Data Structures and SQL.

Skills: Java Programming, Data Strrutures, SQL
College Name: IIITDM Jabalpur

Skills evaluated in this interview

Collabera Technologies Interview FAQs

How many rounds are there in Collabera Technologies Java Developer interview?
Collabera Technologies interview process usually has 3 rounds. The most common rounds in the Collabera Technologies interview process are Resume Shortlist, Case Study and HR.
How to prepare for Collabera Technologies Java Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Collabera Technologies. The most common topics and skills that interviewers at Collabera Technologies expect are Java, Spring Boot, Microservices, J2Ee and Hibernate.
What are the top questions asked in Collabera Technologies Java Developer interview?

Some of the top questions asked at the Collabera Technologies Java Developer interview -

  1. write a code which count the number of String (words) occurrence in sentenc...read more
  2. What is j...read more
  3. It is simple softw...read more

Tell us how to improve this page.

Collabera Technologies Java Developer Interview Process

based on 1 interview

Interview experience

3
  
Average
View more
Collabera Technologies Java Developer Salary
based on 45 salaries
₹2 L/yr - ₹11.8 L/yr
16% more than the average Java Developer Salary in India
View more details

Collabera Technologies Java Developer Reviews and Ratings

based on 7 reviews

3.0/5

Rating in categories

3.1

Skill development

3.1

Work-life balance

2.9

Salary

1.6

Job security

3.1

Company culture

2.1

Promotions

3.1

Work satisfaction

Explore 7 Reviews and Ratings
Senior Software Engineer
376 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Technical Recruiter
250 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Software Engineer
242 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Software Developer
234 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Talent Specialist
224 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Explore more salaries
Compare Collabera Technologies with

TCS

3.7
Compare

Infosys

3.6
Compare

Wipro

3.7
Compare

HCLTech

3.5
Compare
Did you find this page helpful?
Yes No
write
Share an Interview