COMPUTER SYSTEMS WEST Interview Questions and Answers

Program to find factorial of a number using recursion.

• Define a function that takes a number as input.

• Check if the number is 0 or 1, return 1 in that case.

• If not, call the function recursively with n-1 as input and multiply it with n.

• Return the result.

Program to implement stack using class

• Create a class named Stack with necessary methods like push, pop, peek, isEmpty

• Use an array or linked list to store the elements in the stack

• Implement the push method to add elements to the top of the stack

• Implement the pop method to remove and return the top element from the stack

• Implement the peek method to return the top element without removing it

• Implement the isEmpty method to check if the stack is empty

Program to remove duplicate elements from an array

• Use a hashset to store unique elements

• Iterate through the array and add non-duplicates to the hashset

• Convert hashset back to array

TDS is calculated based on the income slab rates and is deducted at the time of payment.

• TDS rates vary based on the type of payment and income slab of the recipient.

• TDS is deducted by the payer at the time of making payment to the payee.

• The payer is required to deposit the deducted TDS to the government.

• TDS certificates are issued to the payee as proof of tax deduction.

• TDS can be calculated using online TDS calculators or manually based on the rates specified by the governmen...read more

A linked list is a data structure where each element points to the next one.

• Create a Node class with a value and a next pointer

• Create a LinkedList class with a head pointer and methods to add, remove, and traverse nodes

• Example: Node(5) -> Node(10) -> Node(15)

• Example: LinkedList.add(5), LinkedList.add(10), LinkedList.add(15), LinkedList.remove(10)

I have 5 years of experience processing payroll for a medium-sized company.

• Managed bi-weekly payroll for 200+ employees

• Processed payroll taxes and deductions accurately

• Implemented new payroll software to streamline processes