TransUnion Interview Questions, Process, and Tips

Pattern programming, javascriptt based questions

Q1. Browser specific questions
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Q1. Annotations used in Springboot project
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Annotations are used in Springboot project for various purposes such as dependency injection, mapping requests, and handling exceptions.
• Annotations are used to provide metadata to the Spring framework.

• Some commonly used annotations in Springboot are @Autowired, @RestController, @RequestMapping, @ExceptionHandler, and @Service.

• Annotations help in reducing the boilerplate code and make the code more readable and maintain...read more
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Q2. Core java question on exception handling, methods, OOPS
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30 questions were asked in this aptitude round.Questions were easy

Q1. Interviewer will be on manager level. Fundamentals will be tested
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Q2. Explain oops concept in java
Ans. 
OOPs is a programming paradigm that uses objects to represent real-world entities.
• Encapsulation: Hiding the implementation details of an object from the outside world

• Inheritance: A mechanism that allows a new class to be based on an existing class

• Polymorphism: The ability of an object to take on many forms

• Abstraction: The process of hiding complex implementation details and showing only the necessary information

• Example...read more
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Q1. What is static intializer?
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A static initializer is a block of code that is used to initialize the static variables of a class.
• Static initializers are executed only once when the class is loaded into memory.

• They are useful for initializing static variables that require complex calculations or external resources.

• Static initializers are defined using the 'static' keyword followed by a block of code enclosed in curly braces.
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Q2. What is Mock MVC ?
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Mock MVC is a testing framework for Spring MVC applications.
• It allows testing of controllers without deploying the application.

• It provides a simulated environment for testing.

• It can be used to test request mappings, request parameters, and response body.

• MockMvc is the main entry point for testing with Mock MVC.
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