The main objective of this chapter is to explain you in details about how to use C# operators in a program.
1. Write a program to check whether input character is vowel or not.
Output
Enter a character : E
E is vowel
2.Calculate area of Rectangle
Output
Enter height : 5
Enter width : 6
Area of Rectangle is 30
1. Write a program to check whether input character is vowel or not.
using System;
namespace Example1
{
class Program
{
static void Main(string[] args)
{
char ch;
Console.Write("Enter a character: \t");
ch = Convert.ToChar(Console.ReadLine());
if (ch == 'a' || ch == 'A' || ch == 'e' ||ch == 'E' || ch == 'i' || ch == 'I' || ch == 'o' || ch == 'O' || ch == 'u' || ch=='U')
{
Console.WriteLine("\n\n{0} is vowel",ch);
}
else
{
Console.WriteLine("\n\n{0} is not vowel",ch);
}
Console.ReadLine();
}
}
}
namespace Example1
{
class Program
{
static void Main(string[] args)
{
char ch;
Console.Write("Enter a character: \t");
ch = Convert.ToChar(Console.ReadLine());
if (ch == 'a' || ch == 'A' || ch == 'e' ||ch == 'E' || ch == 'i' || ch == 'I' || ch == 'o' || ch == 'O' || ch == 'u' || ch=='U')
{
Console.WriteLine("\n\n{0} is vowel",ch);
}
else
{
Console.WriteLine("\n\n{0} is not vowel",ch);
}
Console.ReadLine();
}
}
}
Output
Enter a character : E
E is vowel
2.Calculate area of Rectangle
using System;
namespace Example2
{
class Program
{
static void Main(string[] args)
{
int height, width, area;
Console.Write("Enter height:\t");
height = Convert.ToInt32(Console.ReadLine());
Console.Write("Enter width:\t");
width = Convert.ToInt32(Console.ReadLine());
area = height * width;
Console.WriteLine("\nArea of Rectangle is {0}",area);
Console.ReadLine();
}
}
}
namespace Example2
{
class Program
{
static void Main(string[] args)
{
int height, width, area;
Console.Write("Enter height:\t");
height = Convert.ToInt32(Console.ReadLine());
Console.Write("Enter width:\t");
width = Convert.ToInt32(Console.ReadLine());
area = height * width;
Console.WriteLine("\nArea of Rectangle is {0}",area);
Console.ReadLine();
}
}
}
Output
Enter height : 5
Enter width : 6
Area of Rectangle is 30
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