Girmiti Software Junior Java Developer Interview Questions and Answers

Round duration - 90 minutes
Round difficulty - Easy

There were two section Aptitude and Coding.

Q1. 
Buy and Sell Stock Problem Statement
Imagine you are Harshad Mehta's friend, and you have been given the stock prices of a particular company for the next 'N' days. You can perform up to two buy-and-sell ...read more
Ans. 
The task is to determine the maximum profit that can be achieved by performing up to two buy-and-sell transactions on a given set of stock prices.
• Iterate through the array of stock prices and calculate the maximum profit that can be achieved by buying and selling at different points.

• Keep track of the maximum profit after the first transaction and the maximum profit overall by considering different combinations of buy a...read more
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Round duration - 60 minutes
Round difficulty - Easy

This was the first technical interview.

Q1. 
Pair Sum Problem Statement
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to find and return a list of all pairs of elements where each sum of a pair equals 'S'.
Note:
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Ans. 
Find pairs of elements in an array that sum up to a given value, sorted in a specific order.
• Iterate through the array and for each element, check if the complement (S - current element) exists in a hash set.

• Keep track of pairs in a hash set to avoid duplicates.

• Sort the pairs based on the criteria mentioned in the question.

• Return the sorted list of pairs.
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Very basic aptitude questions along with few coding questions

Q1. A problem statement was given and we had to provide an optimal approach to design and handle that problem
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Q2. Oops concepts, SQL queries
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BASIC DSA LIKE ARRAY AND STRING

Q1. System Design for Electric Charger app ?
Ans. 
System design for an electric charger app involves creating a user-friendly interface, integrating with payment systems, and ensuring efficient charging station management.
• Design a user-friendly interface for users to locate and reserve charging stations

• Integrate with payment systems for seamless transactions

• Implement efficient charging station management to monitor availability and maintenance

• Consider scalability for ...read more
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Q2. Design digram for that ?
Ans. 
Design diagram for a software developer role.
• Use UML diagrams to show class relationships and interactions

• Include components like classes, interfaces, relationships, and methods

• Consider using tools like Lucidchart or draw.io for creating the diagram
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Q1. Pattern printing.
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Q2. Javascript table tr
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Q1. What is the work experience
Ans. 
Work experience refers to the practical knowledge and skills gained from previous employment.
• Work experience includes previous jobs, internships, and projects related to the field.

• It showcases the candidate's ability to apply theoretical knowledge in real-world scenarios.

• Employers look for relevant work experience to assess the candidate's capabilities and fit for the role.
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Q2. What is the data skill set
Ans. 
Data skill set refers to the abilities and knowledge related to handling, analyzing, and interpreting data.
• Proficiency in data analysis tools such as SQL, Python, R, or Excel

• Understanding of data structures and algorithms

• Experience with data visualization techniques like Tableau or Power BI

• Knowledge of statistical analysis and machine learning concepts

• Ability to clean and preprocess data for analysis
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Was taken on firefox Brower and was easy

Very basic questions like swap numbers etc

Q1. Basic questions on cpp
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Q2. Opps concept like encapsulation etc
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Q3. Write a code to reverse a string
Ans. 
Code to reverse a string
• Create an empty string to store the reversed string

• Loop through the original string from end to start

• Append each character to the empty string

• Return the reversed string
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