Birlasoft Software Engineer Interview Questions, Process, and Tips

Q1. Hashmap Working
Ans. 
Hashmap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• Hashmap uses a hash function to map keys to indices in an array.

• It allows for constant time complexity O(1) for insertion, deletion, and retrieval operations.

• Collision handling is important in Hashmap to deal with multiple keys mapping to the same index.

• Example: HashMap map = new HashMap<>(); m
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Q2. Collections questions and overridding coding questions
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Its one question on java.

Q1. Project details
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Q2. Softwares used in project
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Various softwares were used in the project including IDEs, version control systems, databases, and testing frameworks.
• IDEs like IntelliJ IDEA and Visual Studio

• Version control systems like Git and SVN

• Databases like MySQL and MongoDB

• Testing frameworks like JUnit and Selenium
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Good interview on hacker rank platform

Q1. Coding based round
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Q1. Low level design round
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Q1. Write a program given String s="rao2022"; Integer int=22,Add two numbers and print result on output A)String s1=s.replaceall("[a-z]",""); Int a=Integer.parseint(s1); Int result=a+b; System.out.println(resu...read more
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A program to add two numbers and print the result given a string and an integer
• Extract the integer from the string using regex

• Parse the extracted integer and add it to the given integer

• Print the result on the output
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Q2. Write a program to remove duplicate in drop-down
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Program to remove duplicates in a drop-down
• Create a list to store unique values

• Loop through the drop-down options

• Check if the option is already in the list

• If not, add it to the list

• Update the drop-down options with the unique values
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Q3. What is regression testing A) Checking the application whether there is any impact on existing application due to add/delete of feature is called regression testing.
Ans. 
Regression testing is the process of testing changes made to an application to ensure that existing functionality still works as expected.
• It involves re-executing test cases that have been previously run to ensure that changes made to the application have not introduced new bugs or broken existing functionality.

• Regression testing is typically performed after a new feature or bug fix has been implemented.

• It can be done ...read more
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Q4. What is the difference between regression vs Impact testing
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Regression testing checks if changes in code affect existing functionality, while impact testing checks the effect of changes on related components.
• Regression testing ensures that changes in code do not affect existing functionality

• Impact testing checks the effect of changes on related components

• Regression testing is focused on testing the same functionality repeatedly

• Impact testing is focused on testing the impact of ...read more
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Aptitude test, verbal, reasoning, and some questions on programming languages Java and C

Q1. Basic details about ourselves, our engineering education, project details and some technical questions on sql plsql
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Q1. Salary Negotiation, job location, flexibility questions
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