10+ ValueMomentum Software Engineer Interview Questions and Answers

Manhole covers are round because they cannot fall through the hole they cover and are easier to move.

• Round covers cannot fall through the hole they cover, unlike square covers which can fall diagonally.

• Round covers are easier to move as they can be rolled instead of lifted.

• Round covers are also more aesthetically pleasing and symmetrical.

• Square covers may also have sharp corners which can be dangerous to pedestrians and vehicles.

You cannot take 4 liters from a 2 liter and 5 liter jugs.

• It is not possible to take 4 liters from a 2 liter and 5 liter jugs.

• The combined capacity of the two jugs is less than 4 liters.

• You would need a larger jug or a different approach to obtain 4 liters.

The question is a classic example of a problem-solving question that tests the candidate's ability to think logically and creatively.

• The answer would depend on the size of the cricket ball and the Volvo bus.

• We can calculate the volume of the bus and the volume of the cricket ball to estimate the number of balls that can fit.

• Assuming the average size of a cricket ball is 5 cubic inches and the Volvo bus has a volume of 5000 cubic feet, we can fit approximately 1,600,000 cricke...read more

A program to reverse a number in Java.

• Convert the number to a string

• Use StringBuilder to reverse the string

• Convert the reversed string back to a number

A program to find the sum of digits of a given number in Java.

• Take input from user using Scanner class

• Use a while loop to extract each digit from the number

• Add each digit to a variable to get the sum

• Print the sum of digits

I am familiar with a variety of technologies including Java, Python, SQL, HTML/CSS, and JavaScript.

• Proficient in Java and Python programming languages

• Experience with SQL databases and queries

• Familiarity with web development technologies such as HTML/CSS and JavaScript

• Knowledge of software development methodologies such as Agile and Scrum

• Experience with version control systems such as Git

Factorial program in Java

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

• Handle the case when n is 0 or 1 separately

• Use recursion to calculate factorial

• Factorial of a negative number is undefined

Black box testing focuses on functionality without knowledge of internal code, while white box testing examines code structure and logic.

• Black box testing tests the software from an external perspective, focusing on inputs and outputs.

• White box testing tests the software from an internal perspective, examining code structure, paths, and logic.

• Black box testing is often used for functional testing, while white box testing is used for structural testing.

• Examples of black box te...read more

PL/SQL functions and stored procedures are used for creating reusable code in Oracle databases.

• PL/SQL functions are used to return a single value while stored procedures are used to perform a set of operations.

• Functions can be called from SQL statements while procedures cannot.

• Both functions and procedures can have input and output parameters.

• Examples of PL/SQL functions and stored procedures include calculating the average salary of employees and updating employee records.