HackerEarth Software Engineer Interview Questions and Answers for Experienced

Q1. What is data warehousing
Ans. 
Data warehousing is the process of collecting, storing, and managing data from various sources for analysis and reporting.
• Data warehousing involves extracting data from multiple sources

• Data is then transformed and loaded into a central repository

• The data can be used for analysis, reporting, and decision-making

• Examples include data warehouses used by businesses to analyze sales data
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Q1. Why do you want to join this company
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I admire your company's innovative approach and commitment to impactful technology, aligning perfectly with my career goals and values.
• Your focus on cutting-edge technology, like AI and machine learning, excites me as I have experience in developing similar solutions.

• I appreciate your commitment to sustainability, which resonates with my personal values and desire to contribute to a better future.

• The collaborative cult...read more
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Q2. Tell me about yourself
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Q1. Basic DSA. Array and String
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Q2. Salary negotiation.
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General basic math and reasoning.

Basic question for coding like pattern making (triangle) they will observe you for your skills and logical understanding with the code.

Q1. OOP questions SQL Questions Programming structure
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Q1. SQL questions MVC and C# related questions
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Q1. What are the main principles of the Java
Ans. 
Main principles of Java include object-oriented programming, platform independence, and automatic memory management.
• Object-oriented programming: Java is based on classes and objects, allowing for encapsulation, inheritance, and polymorphism.

• Platform independence: Java code can run on any platform that has a Java Virtual Machine (JVM) installed.

• Automatic memory management: Java uses garbage collection to automatically m
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Q2. What is the different between == and equals method
Ans. 
The == operator compares the memory addresses of two objects, while the equals method compares the content of two objects.
• The == operator is used to compare the memory addresses of two objects in Java.

• The equals method is used to compare the content of two objects in Java.

• Example: String str1 = new String("hello"); String str2 = new String("hello"); str1 == str2 will return false, but str1.equals(str2) will return true
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Q1. What is jdk, string related questions, basic java oops questions?
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