Springer Nature in India Java Software Developer Interview Questions and Answers

Q1. Test strategies
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Q2. Which level of testing is more focussed
Ans. 
Unit testing is more focused
• Unit testing focuses on testing individual components or functions in isolation

• It is typically automated and executed frequently during development

• Examples include testing a specific function in a program or a specific module in an application
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Hsd to design a simple product cart application

It was a phycometry test

Q1. Questions on REST API and some simple front end questions
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Q2. GetMapping, springboot
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Q3. How to write a test cases in junit
Ans. 
JUnit is a popular testing framework for Java that allows developers to write and run repeatable tests.
• 1. Import JUnit libraries: Use 'import org.junit.*;' to access JUnit classes.

• 2. Create a test class: Annotate the class with '@RunWith(JUnit4.class)' to indicate it's a test class.

• 3. Write test methods: Annotate methods with '@Test' to mark them as test cases. Example: '@Test public void testAddition() { assertEquals(...read more
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Q1. Very basic questions
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Q2. Security for API,
Ans. 
API security involves protecting APIs from threats and vulnerabilities to ensure data integrity and confidentiality.
• Use HTTPS to encrypt data in transit, preventing eavesdropping.

• Implement authentication mechanisms like OAuth 2.0 for secure access.

• Validate and sanitize inputs to prevent injection attacks.

• Rate limiting can prevent abuse by restricting the number of requests.

• Use API gateways to manage and monitor API tra
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Q1. Tell me about yourself
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Graph ques DSA, number pattern question

They will give javascript coding(based on your role)question we need to solve and submit the solution

Q1. Asked basic js questions and some logical questions
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Q1. Regarding skills set
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Had technical round with coding

Q1. Had discussion on skills , i joined as a fresher
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Q1. Basic python qyestions
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Q2. Oops concepts in python
Ans. 
Oops concepts in Python include inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit attributes and methods from another class.

• Encapsulation restricts access to certain components within a class.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides complex implementation details and only shows the necessary features.
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Q3. Sql queries in framework
Ans. 
SQL queries are commonly used in frameworks for data manipulation and retrieval.
• SQL queries are used to interact with databases within a framework.

• Frameworks like Hibernate, Entity Framework, and Django ORM use SQL queries to perform database operations.

• SQL queries can be written directly in code or generated by the framework based on object-relational mapping.

• Examples: SELECT * FROM table_name WHERE condition, INSERT ...read more
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Q4. Inheritance and polymorphism
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Q5. Design pattern in python
Ans. 
Design patterns in Python are reusable solutions to common problems in software design.
• Design patterns help in creating maintainable and scalable code.

• Some common design patterns in Python include Singleton, Factory, Observer, and Strategy.

• Each design pattern has its own purpose and implementation.

• Design patterns promote code reusability and flexibility.
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Q1. What is the use of namespace in Php?
Ans. 
Namespace in PHP is used to avoid naming conflicts between classes, functions, and variables.
• Namespace allows grouping of related classes, functions, and variables under a common name.

• It helps in organizing code and makes it easier to maintain.

• Namespace can be declared using the 'namespace' keyword followed by the namespace name.

• Example: namespace MyNamespace;

• To use a class or function from a namespace, we need to spec...read more
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Q2. Difference between interface and abstract class
Ans. 
Interface defines only method signatures while abstract class can have both method signatures and implementations.
• An interface can be implemented by multiple classes while an abstract class can only be extended by one class.

• An abstract class can have constructors while an interface cannot.

• An abstract class can have non-abstract methods while an interface can only have abstract methods.

• An abstract class can have instanc...read more
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