TTEC India Interview Questions and Answers

The question covers topics like OOPs, boxing vs unboxing, finding the 2nd highest salary, joins, lifecycle hooks, and calling an API with a service in the constructor.

• Boxing vs unboxing: Boxing is the process of converting a value type to a reference type, while unboxing is the opposite. Example: int i = 10; object obj = i; // boxing int j = (int)obj; // unboxing

• Finding 2nd highest salary: Use SQL query like 'SELECT MAX(salary) FROM employees WHERE salary < (SELECT MAX(salary...read more

Breaking down features into user stories and prioritizing them is crucial for successful product development.

• Start by identifying the key features of the product or project

• Break down each feature into smaller, more manageable user stories

• Prioritize user stories based on value, complexity, dependencies, and deadlines

• Use techniques like MoSCoW method, Kano model, or story mapping to prioritize user stories

• Regularly review and adjust priorities based on feedback and changing req...read more

final is a keyword used to declare a variable constant, finally is a block of code that executes regardless of exception, finalize is a method called by garbage collector before destroying an object.

• final is used to declare a variable constant

• finally is a block of code that executes regardless of exception

• finalize is a method called by garbage collector before destroying an object

OOPs stands for Object-Oriented Programming. There are four main types: Inheritance, Encapsulation, Abstraction, and Polymorphism.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Abstraction: Hiding the complex implementation details and showing only the necessary features of an object.

• Polymorphism: Allows objects of different classes to be treated as objects ...read more

POST is used to send data to a server to create/update a resource, while GET is used to request data from a server.

• POST is used to create or update a resource on the server

• GET is used to request data from the server

• POST requests are not cached by the browser

• GET requests can be cached by the browser

• POST requests have a limit on the amount of data that can be sent

• GET requests have a limit on the length of the URL