Salesforce Trainee Interview Questions and Answers

A program to check if a string is a palindrome or not.

• A palindrome is a word, phrase, number, or other sequence of characters that reads the same forward and backward.

• To check if a string is a palindrome, we can compare the characters from the beginning and end of the string.

• If the characters match for all positions, the string is a palindrome.

• We can ignore spaces, punctuation, and case sensitivity when checking for palindromes.

Salesforce is a cloud-based CRM platform that helps businesses manage customer interactions and automate sales processes.

• Salesforce is a customer relationship management (CRM) platform

• Triggers are used to automate processes in Salesforce

• Lightning is a user interface framework for building dynamic web applications

• Salesforce offers various cloud services such as Sales Cloud, Service Cloud, Marketing Cloud, etc.

Main function is the entry point of a program. It is used to execute the code in the program.

• Main function is required in every program written in C, C++, Java, etc.

• It is the first function to be executed when the program starts.

• It can take command line arguments.

• It returns an integer value to the operating system.

• Example: int main() { // code to be executed }

A constructor is a special method that is used to initialize objects in a class.

• Constructors have the same name as the class they belong to.

• They are called automatically when an object is created.

• They can be used to set initial values for object properties.

• Constructors can be overloaded to accept different parameters.

• Example: public class Person { public Person(String name) { this.name = name; } }

Program to find factorial of a number

• Use a loop to multiply the number with all the numbers below it

• Handle the case when the number is 0 or 1 separately

• Use recursion to find factorial of a number