C# program to change the case of entered character:
In this post, we will learn how to change the case of a entered character in C#. If the user will enter a lower case character, it will print the same character in uppercase. For a uppercase character, it will print the same character in lower case.
With this program, you will learn how to read user inputs and how to change the case of a character in C#.
C# program:
Below is the complete C# program:
using System;
public class Program
{
public static void Main()
{
char c;
Console.Write("Enter a character to convert : ");
c = Convert.ToChar(Console.ReadLine());
if (c >= 65 && c <= 90)
{
Console.WriteLine("Changing the character to lowercase "+char.ToLower(c));
}
else if (c >= 97 && c <= 122)
{
Console.WriteLine("Changing the character to uppercase "+char.ToUpper(c));
}
}
}Explanation:
Here,
- we are asking the user to enter a character to convert or change the case.
- The entered character is stored in the variable c.
- We are checking the ASCII value of the entered character. Based on that, if it is a lower case, we are converting it to uppercase. Else, we are converting it to lower case.
- char.ToLower is used to convert a character to lower case and char.ToUpper to convert a character to upper case.
Sample output:
It will print output as like below:
Enter a character to convert : F
Changing the character to lowercase f
Enter a character to convert : f
Changing the character to uppercase F