Head Digital Works Module Lead Interview Questions and Answers

1 hour, 22 questions related to Java Spring Boot, SQL, and Hibernate, also one DSA Question, implementation of a card board game.

Q1. Java oops concepts and describe overloading
Ans. 
Java oops concepts include encapsulation, inheritance, abstraction, and polymorphism. Overloading is a way to define multiple methods with the same name but different parameters.
• Encapsulation: bundling data and methods that operate on that data within a single unit

• Inheritance: creating new classes from existing ones

• Abstraction: hiding implementation details and showing only the necessary information

• Polymorphism: using ...read more
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Q2. Encapsulation how to achieve in java
Ans. 
Encapsulation in Java is achieved by using access modifiers and creating classes with private fields and public methods.
• Use access modifiers such as private, public, and protected to restrict access to fields and methods

• Create classes with private fields and public methods to control access to data

• Encapsulation helps to maintain data integrity and prevent unauthorized access to data

• Example: class Person { private Strin...read more
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Q3. Overriding questions code and snippets
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Q4. Based on overloading and overriding code and snippets
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Q5. String and string pool
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Q6. Exception handling throws ,throw
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Hackerearth test with c# ,SQL and MCQ

Q1. Mvvm and Entity framework
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Simple technical programs to test your analytical test

Q1. Nothing all basic hr questions
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