TCS Fullstack Java Application Developer Interview Questions and Answers

Factorial can be calculated using a loop by multiplying numbers from 1 to n.

• Initialize a variable to 1

• Use a loop to multiply the variable with numbers from 1 to n

• Return the variable

Answering questions related to software development and Salesforce administration.

• Process Builder is a visual tool in Salesforce used to automate business processes.

• Types of relationships in Salesforce include lookup, master-detail, and many-to-many relationships.

• User represents an individual who can log in and access Salesforce, Profile defines the permissions and settings for a user, and Role determines the hierarchy...read more

I have configured various software systems and tools for development purposes.

• Configured IDEs such as Eclipse and Visual Studio for development

• Set up version control systems like Git and SVN

• Installed and configured build tools like Maven and Gradle

• Configured application servers like Tomcat and JBoss

• Set up databases like MySQL and Oracle for development and testing

Count the number of pairs in an array whose sum is equal to a given number k.

• Iterate through the array and for each element, check if k minus the element exists in the array.

• Use a hash table to store the frequency of each element in the array.

• If the array contains duplicates, handle them separately to avoid overcounting.

• Time complexity can be improved to O(n) using a two-pointer approach.

A closure is a function that has access to its outer function's variables, even after the outer function has returned.

• A closure is created when a function is defined inside another function.

• It allows for private variables and functions in JavaScript.

• Closures are used for data hiding, encapsulation, and creating modules.

• Example: function outer() { var x = 10; function inner() { console.log(x); } return inner; } var clos