TCS Springboot Developer Interview Questions, Process, and Tips

Create a Spring Boot application to generate an XML file from two input values.

• Create a Spring Boot project using Spring Initializr

• Create a REST controller to accept two input values

• Use JAXB to generate XML from the input values

• Return the generated XML file as response

Program to insert comma after every character in a string.

• Iterate through each character in the string

• Append the character and a comma to a new string

• Handle the last character to avoid adding an extra comma

Use SQL query with ROW_NUMBER() function to find the third max salary in Oracle.

• Use ROW_NUMBER() function to assign a unique row number to each row based on the salary in descending order.

• Filter the result where the row number is 3 to get the third max salary.

Circuit breaker is a design pattern used in microservices to prevent cascading failures.

• Circuit breaker is used to detect failures and prevent them from causing further issues.

• It works by wrapping a protected function call in a circuit breaker object.

• Annotations like @CircuitBreaker in Spring Cloud are used to implement circuit breaker pattern.

• These annotations allow developers to easily add circuit breaker functionali

JPA is a specification while Hibernate is an implementation of JPA.

• JPA is a Java specification for managing relational data in applications.

• Hibernate is an ORM framework that implements the JPA specification.

• Hibernate provides additional features beyond JPA, such as caching and lazy loading.

• JPA is vendor-neutral, allowing developers to switch between different JPA implementations.

• Hibernate is a popular choice for JPA i...read more