Flex Associate Software Engineer Interview Questions, Process, and Tips

Q1. What happens in the backend when we cret an object in Java? What should be done before creating the method body in Java?
Ans. 
When an object is created in Java, memory is allocated in the heap for the object and its instance variables.
• Memory is allocated in the heap for the object and its instance variables

• Constructor is called to initialize the object

• Reference to the object is returned
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Q1. Explain the working of Springboot and microservices. What can and cannot be done when using Final keyword in Java?
Ans. 
Springboot is a framework for building Java applications, while microservices is an architectural style for developing applications as a collection of small services.
• Springboot simplifies the development of Java applications by providing a set of pre-configured tools and frameworks.

• Microservices architecture breaks down applications into smaller, independent services that can be developed, deployed, and scaled independ...read more
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Round duration - 60 minutes
Round difficulty - Medium

Coding question was given.

Q1. Remove Vowels from a given string
You are given a string STR of length N. Your task is to remove all the vowels present in that string and print the modified string.
English alphabets ‘a’, ‘e’, ‘i’, ‘o’,...read more
Ans. Brute Force
1. Iterate through the string STR from i = 0 to i = N-1 and check:
   1. If the current character is not vowel: Do nothing.
   2. Else
      1. Iterate from j = i+1 to N-2 and copy j th alphabet to j-1 th position
      2. Reduce the value of N by 1 as an alphabet is removed now.
Space Complexity: O(n)Explanation:
O(N), where N is the length of string STR.
 
Using an ‘N’ size array.
Time Complexity: O(n^2)Explanation:
O(N^2), where N is the le...read more
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Round duration - 40 minutes
Round difficulty - Medium

It was first technical round with technical team.

Q1. Technical Interview
Difference between mysql and mongodb
Ans. 
Tip 1: Focus on reasons.
Tip 2: Dependence on project.
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Round duration - 30 minutes
Round difficulty - Medium

Tehnical round 2.
Here my projects and internships were evaluated

Q1. Project Questions
I was asked to explain my projects with used technology and approach
Ans. 
Tip 1: Explain projects where you've worked seriously.
Tip 2: Explain your contribution.
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Round duration - 30 minutes
Round difficulty - Easy

HR questions were asked and remuneration details were given to me

Q1. HR Discussion
Ans. 
Tip 1: Go through company website thoroughly 
Tip 2: Prepare for HR sample questions
Tip 3: Be prepared with some questions you want to ask them.
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