Einfochips Senior Engineer Interview Questions and Answers

Q1. Tell me about yourself
Ans. 
Experienced Senior Engineer with a strong background in software development and project management.
• Over 10 years of experience in software engineering

• Expertise in project management and leading cross-functional teams

• Proficient in multiple programming languages such as Java, Python, and C++

• Strong problem-solving skills and ability to deliver high-quality solutions

• Previous projects include developing a scalable e-commer...read more
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Q2. More questions on what is given in the resume
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Q1. Basic java, rest assured api
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Basic java programming

Q1. Depth automation testing related question
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Q1. Salary discussion
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Q1. Questions from past projects
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Q2. Questions from Process
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Q1. Internal working of hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• HashMap uses the hashCode() method of ke...read more
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Q2. What are the feature of jdk 8
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JDK 8 features include lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to write code in a more concise and readable way.

• Functional interfaces enable the use of lambda expressions.

• Streams provide a way to work with sequences of elements efficiently.

• Default methods allow interfaces to have concrete methods.

• Date and Time API improvements.
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Q1. Java hash map and how it works
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Java hash map is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values based on keys.
• HashMap in Java implements the Map interface and allows null keys and values.

• It uses hashing to store and retrieve key-value pairs, providing O(1) time complexity for get() and put() operations.

• Example: HashMap map = new HashMap<>(); map.put("key", 1); int value = map.get("key");
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Q1. Transaction in Java
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A transaction in Java is a unit of work that is performed as a single, indivisible operation.
• Transactions ensure data integrity by either committing all changes or rolling them back if an error occurs.

• Transactions are typically used in database operations to ensure consistency.

• In Java, transactions are commonly implemented using frameworks like Spring's @Transactional annotation.
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Q2. GitHub code push
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