50+ C# Programs, Exercises, Solutions for beginners to practice

Top C# Programs with solutions for beginners to practice. Fibonacci Series, Prime, Palindrome, Armstrong, loops, Swap, Pyramids , Triangles, and many more

C# Program to Check Whether a Number is Prime or Not

In this C# program, we will take input from the user and check whether the number is prime or not. A prime number is a positive integer that is divisible only by 1 and itself.

C# Program to Calculate Sum of first N natural numbers

In this C# program, we will take input from the user and generate the sum of first N natural Numbers. The sum of natural numbers up to 10 is: 1+2+3+4+5+6+7+8+9+10=55

C# Program to swap two numbers without using the third variable

In this C# program, we will swap two numbers without using the third variable. We will use two methods to swap numbers 1) By using Addition and Subtraction 2) By using Multiplication and Division

C# Program to print prime numbers from 1 to N

In this C# program, we will take input from the user and print prime numbers between 1 and the number input by the user. A prime number is a positive integer that is divisible only by 1 and itself.

C# Program to print perfect numbers from 1 to N

In this C# program, we will take input from the user and print perfect numbers between 1 and the number input by the user. A perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. For instance, 6 has divisors 1, 2 and 3, and 1 + 2 + 3 = 6, so 6 is a perfect number.

C# Program to print even numbers from 1 to N

In this C# program, we will take input from the user and print even numbers between 1 and the number input by the user. A even number is a positive integer that is exactly divisible by 2.

C# Program to print odd numbers from 1 to N

In this C# program, we will take input from the user and print odd numbers between 1 and the number input by the user. An odd number is a positive integer that is not divisible by 2.

C# Program to Check Whether a Number is Even or Odd

In this C# program, we will take input from the user and check whether a number is even or odd. An Even number is a positive integer that is divisible by 2 and An odd number is a positive integer that is not divisible by 2.

C# Program to Check Whether a Number is Positive or Negative

In this C# program, we will take input from the user and check whether a number is Positive or Negative. A Positive number is a number that is greater than 0 and a Negative number is a number that is lesser than 0.

C# Program to generate a sum of digits

In this C# program, we will take input from the user and generate a sum of digits. For example, if the user input 88 then result is 16.

C# Program to Generate a Multiplication Table of a given integer

In this C# program, we will take input from the user and generate a multiplication table.

C# Program to Calculate the Area of a Circle

In this C# program, we will take input (radius) from the user and calculate the area of a circle. Formula to calculate area of circle is A= π*r*r.

C# Program to Calculate the Area of a Square

In this C# program, we will take input (side) from the user and calculate the area of a square. Formula to calculate area of Square is A= (side of square*side of square).

C# Program to Calculate the Area of a Rectangle

In this C# program, we will take input (Length and Width) from the user and calculate the area of a Rectangle. Formula to calculate area of Rectangle is A= Length*Width.

C# Program to Calculate the Area of a Triangle

In this C# program, we will take input (Base and Height) from the user and calculate the area of a Triangle. Formula to calculate area of Triangle is A= (base*height/2).

C# Program to Check Whether a Number is Palindrome or Not

In this C# program, we will take input from the user and Check Whether a Number is Palindrome or Not. A number is a palindrome if the reverse of that number is equal to the original number.

C# Program to Check Whether a String is Palindrome or Not

In this C# program, we will take input from the user and Check Whether a String is Palindrome or Not. A String is a palindrome if the reverse of that String is equal to the original

C# Program to Print Fibonacci Series

The Fibonacci sequence is a sequence where the next number is the sum of the previous two numbers. The first two numbers of fibonacci series are 0 and 1.

C# Program to Find Factorial of a Number

In this C# program, we will take input from the user and Find the Factorial of a Number using 3 different ways using 1) For loop 2) Recursion 3) While loop. The factorial of a positive number n is given by n!. 5!=5*4*3*2*1=120

C# Program to print Alphabet Triangle

In this C# program, we will take input (Number of rows) from the user and print the alphabet triangle based on the number of rows input by the user.

C# Program to print Number Triangle

In this C# program, we will take input (Number of rows) from the user and print the Number triangle based on the number of rows input by the user.

C# Program to print Star Triangle

In this C# program, we will take input (Number of rows) from the user and print the Star (*) triangle based on the Number of rows input by the user.

C# Program to print Diamond Shape

In this C# program, we will take input (Number of rows) from the user and print the diamond shape based on the Number of rows input by the user.

C# program to change case of a string

In this C# program, we will take the input string from the user and change it to 1)Upper Case 2)Lower Case 3)Title Case.

C# program to add and subtract days from the date

In this C# program, we will add and subtract days from the date.

C# Program to Check Leap Year

In this C# program, we will take the input from the user and check whether the input year is a Leap Year or not. Leap year is a year which is divisible by 4.

C# program to compare two dates

In this C# program, we will compare two dates and print the result.

C# program to convert days into years, weeks and days

In this C# program, we will take the input (days) from the user and Convert days into years, weeks and days.

C# Program to Print Day Name of Week

In this C# program, we will take the input from the user and print day name of week.

C# Program to convert Celsius into Fahrenheit

In this C# program, we will take the input Celsius from the user and change it to Fahrenheit.

C# Program to Convert Number into Words

In this C# program, we will take the input number from the user and change it to Words. E.g. 1024 will be converted to One Thousand Twenty Four only.

C# Program to Convert Meters To Kilometers

In this C# program, we will take the input meters from the user and change it Kilometers.

C# program to calculate Simple Interest

In this C# program, we will take the input "Principal Amount", "Interest Rate" and "Time" from the user and calculate the simple interest.

C# program to calculate Compound Interest

In this C# program, we will take the input "Principal Amount", "Interest Rate", "Interest Compound Frequency" and "Time" from the user and calculate the simple interest.

C# Program to Find GCD of two Numbers

In this C# program, we will take the input from the user and find GCD of two numbers.

C# Program to Find LCM of two Numbers

In this C# program, we will take the input from the user and find LCM of two numbers.

C# Program to Find HCF of two Numbers

In this C# program, we will take the input from the user and find HCF of two numbers.

C# program to reverse an array elements

In this C# program, we will reverse an array without using Array.Revers() Method.

C# Program to concatenate two strings

In this C# program, we will take the input strings from the user and print the concatenated string.

C# Program to read the content of a file

In this C# program, we will read the content of the Text file and print the content of the file.

C# Program to Check Whether a Character is a Vowel or Consonant

In this C# program, we will take the input from the user and Check Whether a Character is a Vowel or Consonant.

C# switch example

In this C# program, we will learn how to implement a switch case in C#. We will use a switch statement to display the name of the day based on the input entered by the user.

C# For Loop with examples

In this C# program, we will see For Loop with examples.

C# While Loop with examples

In this C# program, we will see While Loop with examples.

C# Do While Loop with examples

In this C# program, we will see Do While Loop with examples.

C# Remove last specific character in a string

In this C# program, we will see how to Remove last specific character in a string. In this example we will remove last , from the string.

C# Program to Convert a List to a comma separated string

In this C# program, we will see how to Convert a List to a comma separated string.

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 You might also like: 1)  C# Program to Find HCF of two Numbers 2)  C# While Loop with examples 3)  C# switch example 4)  C# Program to concatenate two strings 5)  C# Program to Calculate the Area of a Triangle
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