10+ Aidetic Software Interview Questions and Answers

Reversing an integer without using string in Python

• Convert the integer to a list of digits

• Reverse the list

• Convert the list back to an integer

A Java file can have multiple classes, but only one public class.

• A Java file can have multiple non-public classes.

• The name of the public class must match the name of the file.

• Only the public class can be accessed from outside the file.

To initialise a browser using Selenium, we need to create an instance of the WebDriver interface.

• Import the necessary packages for Selenium and WebDriver

• Create an instance of the desired browser driver

• Use the driver instance to open a new browser window

Selenium uses browser-specific drivers to communicate with the browser and automate user actions.

• Selenium sends commands to the browser driver, which translates them into browser-specific actions.

• The driver then sends the results back to Selenium.

• Selenium can interact with the browser using various methods such as find elements, click, type, etc.

• Selenium supports multiple browsers such as Chrome, Firefox, Safari, and more.

A program to check if two strings are palindromes.

• Create a function that takes two strings as input.

• Reverse the second string and compare it with the first string.

• If they are the same, return true. Otherwise, return false.

Test cases to test ATM machine

• Verify if the ATM machine is dispensing the correct amount of cash

• Check if the ATM machine is accepting valid debit/credit cards

• Ensure that the ATM machine is providing proper instructions to the user

• Test if the ATM machine is properly handling errors and exceptions

• Validate if the ATM machine is maintaining transaction records accurately

A program to reverse the characters of a given string.

• Iterate through the string from the end and append each character to a new string.

• Use built-in functions like reverse() or StringBuilder in Java.

• Convert the string to an array, reverse the array, and convert it back to a string.

PUT is used to update an existing resource, PATCH is used to partially update an existing resource, and POST is used to create a new resource.

• PUT replaces the entire resource with the new one, while PATCH only updates the specified fields

• PUT and PATCH are idempotent, meaning multiple identical requests will have the same effect as a single request

• POST is not idempotent and creates a new resource

• PUT and PATCH require the resource identifier in the URL, while POST does not

SQL CASE statement is used to add conditional logic to SQL queries.

• It allows for conditional execution of SQL statements.

• It can be used in SELECT, WHERE, and ORDER BY clauses.

• It can be used with multiple conditions and ELSE statements.

• Example: SELECT name, CASE WHEN age < 18 THEN 'Minor' ELSE 'Adult' END AS age_group FROM users;

• Example: SELECT name, CASE WHEN score >= 90 THEN 'A' WHEN score >= 80 THEN 'B' ELSE 'C' END AS grade FROM students;