Capgemini Interview Questions, Process, and Tips for Experienced

Using Java 8 streams API to check if a string is a palindrome

• Use stream to convert the string to a character array

• Reverse the character array using stream

• Compare the reversed array with the original array to check for palindrome

PathVariable is used to extract values from the URI while RequestParam is used to extract values from query parameters.

• PathVariable is used to bind a method parameter to a URI template variable in a Spring MVC application.

• RequestParam is used to extract query parameters from the URL in a Spring MVC application.

• PathVariable is part of the URI while RequestParam is part of the query parameters.

• PathVariable is used for ma...read more

When the same key value is entered in a HashMap, the new value will overwrite the existing value associated with that key.

• When a duplicate key is added, the new value will replace the old value for that key

• HashMap does not allow duplicate keys, so each key must be unique

• Retrieving the value for a key will return the most recently added value

Hibernate is used as an ORM (Object-Relational Mapping) tool in Java to simplify database operations.

• Automatically maps Java classes to database tables

• Eliminates the need for writing complex SQL queries

• Provides caching mechanisms for improved performance

• Supports inheritance, associations, and polymorphism

• Enables developers to focus on business logic rather than database operations