Lesson 2: Flow Control in C# – if, else, switch, loops (for, while, do-while)

Explore our curated collection of Flow Control C# Programming Exercises! Designed to strengthen your understanding and mastery of flow control structures in C#, these exercises offer a hands-on approach to learning. From conditional statements to loops and switch cases, each exercise is crafted to help you navigate the complexities of program flow with confidence. Whether you're a beginner or looking to refine your skills, dive in and elevate your C# programming proficiency today!



Flow Control Exercises in C# Programming Course

Master flow control in C# programming with the exercises designed to enhance your skills. Learn how to effectively control program flow in C# today!



 Positive and negative
Write a C# program to get a number and answer whether it is positive or negative....
 Multiply if not zero
Write a C# program to ask the user for a number; if it is not zero, then it will ask for a second number and display their sum; otherwise, it will dis...
 Divide if not zero
Write a C# program to ask the user for two numbers and display their division if the second number is not zero; otherwise, it will display "I cannot d...
 Divide if not zero (Using else)
Write a version of the previous program using 'else'. The program should ask the user for two numbers, and if the second number is not zero, it will d...
 Greatest of three numbers
Write a C# program that prompts the user to enter three numbers and displays the greatest one....
 Repeat until 0
Write a C# program to ask the user for a number "x" and display 10*x. It must repeat until the user enters 0 (using "while")....
 Repeat until 0 (Use Do While)
Write a C# program that asks the user for a number "x" and displays 10*x. The program must repeat the process until the user enters 0, using "do-while...
 While + Counter
Write a C# program to display the numbers 1 to 10 on the screen using "while"....
 Multiplication table (use while)
Write a C# program that prompts the user to enter a number and displays its multiplication table using a 'while' loop....
 Odd numbers descending
Write a C# program to display the odd numbers from 15 to 7 (downwards) on the screen using "while"....
 Sum numbers
Write a C# program to ask the user for an undetermined amount of numbers (until 0 is entered) and display their sum, as follows: Number? 5 Total =...
 Two negative numbers
Write a C# program to prompt the user for two numbers and determine if both numbers are negative or not....
 One or two negative numbers
Write a C# program to prompt the user for two numbers and determine whether both are negative, only one is negative, or neither is negative....
 Multiples
Write a C# program to display on the screen the numbers from 1 to 500 that are multiples of both 3 and 5. (Hint: Use the modulo operator to check for ...
 Number repeated
Write a C# program that asks the user for a number and a quantity, and displays that number repeated as many times as the user has specified. Here's a...
 Password
Write a C# program to prompt the user to enter their login and password (both must be integer numbers) and repeat the prompt as many times as necessar...
 Password V2
Write a C# program to ask the user for their login and password (both must be integer numbers) until the entered login is "12" and the password is "12...
 Many divisions
Write a C# program that asks the user for two numbers and displays their division and remainder of the division. If 0 is entered as the second number,...
 Several multiplication tables, (use do while)
Write a C# program that display multiplication tables from 2 to 6 using nested "do...while" loops....
 Square
Write a C# program that prompts the user to enter a number and a width, and displays a square of that width, using that number for the inner symbol, a...
 Break & continue
Write a C# program to write the even numbers from 10 to 20, both inclusive, except 16, in 3 different ways: Incrementing 2 in each step (use "conti...
 Rectangle V2
Write a C# program that asks for a number, width, and height, and displays a rectangle of that width and height, using that number for the inner symbo...
 Repetitive structures
Write a C# program that prompts the user for two numbers and displays the numbers between them (inclusive) three times using "for", "while", and "do w...
 Digits in a number
Write a C# program to calculate the number of digits in a positive integer (hint: this can be done by repeatedly dividing by 10). If the user enters a...
 Hollow square
Write a C# program that asks for a symbol and a width, and displays a hollow square of that width using that symbol for the outer border, as shown in ...
 Product
Write a C# program that asks the user for two integer numbers and shows their multiplication, but not using "*". It should use consecutive additions. ...
 Absolute value
Write a C# program to calculate (and display) the absolute value of a number x: if the number is positive, its absolute value is exactly the number x;...
 Hollow rectangle
Write a C# program that prompts for a symbol, a width, and a height, and displays a hollow rectangle of that width and height, using that symbol for t...
 Statistics
Write a C# program to calculate various basic statistical operations: it will accept numbers from the user and display their sum, average, minimum and...
 Switch
Write a C# program to display the text grade corresponding to a given numerical grade, using the following equivalence: 9,10 = Excellent 7,8 = Ver...
 Conditional operator, positive & smaller
Write a C# program that asks the user for two numbers and answers, using the conditional operator (?), for the following: If the first number is po...
 Prime number
Write a C# program that asks the user for an integer and determines if it is a prime number or not....
 Give change
Write a C# program to give change for a purchase, using the largest possible coins (or bills). Suppose we have an unlimited amount of coins (or bills)...
 Exceptions
Write a C# program to prompt the user for two numbers and display their division. Errors should be caught using "try..catch"...