Coforge Software Engineer Interview Questions, Process, and Tips

Q1. Why override the Equals method
Ans. 
Overriding Equals method helps to compare objects based on their values rather than their references.
• Default implementation of Equals method compares object references

• Overriding Equals method allows custom comparison based on object values

• Helps in implementing value equality for custom classes

• Used in collections like HashSet to check for duplicates
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Q2. How to swap two integer values without using a third variable.
Ans. 
Swapping two integer values without using a third variable.
• Use XOR operator to swap two integers without using a third variable.

• Addition and subtraction can also be used to swap two integers.

• Bitwise operations can also be used to swap two integers.
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Q3. Difference between Abstract class and interface.
Ans. 
Abstract class can have implementation while interface only has method signatures.
• Abstract class can have constructors while interface cannot.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract class can have non-public members while interface only has public members.

• Abstract class is used for creating a base class while interface is used for implementing a contract.

• Example o...read more
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Question on array and string

Q1. Normal question about dbms sql and java
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Q1. Managerial questions
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Q1. It will be mostly the basics of the programming language you have in your resume
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Q2. OOps concepts with practical examples and syntax
Ans. 
Object-Oriented Programming concepts include encapsulation, inheritance, and polymorphism.
• Encapsulation: bundling data and methods that operate on that data within a single unit (class). Example: private variables in a class.

• Inheritance: creating new classes from existing ones, inheriting their properties and methods. Example: a subclass of a vehicle class inheriting its speed and fuel capacity.

• Polymorphism: the abilit...read more
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Code related to specific program moreover logic based

Just basic aptitude test

Q1. Do you know about database
Ans. 
Yes, I have knowledge about databases.
• I am familiar with relational databases like MySQL, PostgreSQL, and Oracle.

• I have experience with NoSQL databases such as MongoDB and Cassandra.

• I understand database design principles, normalization, and indexing.

• I have worked with SQL queries, stored procedures, and triggers.

• I am proficient in database management and optimization.
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Q2. Pattern printing questions
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Q3. Oops concepts like pillar of oops
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Q4. Basic coding question like factorial
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Q1. Tell me about hobbies
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Q2. Explain your hobbies means eloborate your hobby
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