Now, This is the one of the best and ever like simple program of C# programming(Or may be any other programming language).
In this program i am giving an example of Addition, Subtraction, Multiplication, and Division to explain "Switch - Case" constructs.
ENJOY CODING!!!
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Switch_Case
{
class PostSlush
{
static void Main(string[] args)
{
int opt, no1, no2;
float res;
label:
Console.WriteLine("\n\tMenu");
Console.WriteLine("\nPress 1 for add");
Console.WriteLine("Press 2 for subtraction");
Console.WriteLine("Press 3 for multiplication");
Console.WriteLine("Press 4 for Division");
Console.Write("\n\nEnter first number:\t");
no1 = Convert.ToInt32(Console.ReadLine());
Console.Write("Enter second number:\t");
no2 = Convert.ToInt32(Console.ReadLine());
Console.Write("\nEnter your option:\t");
opt = Convert.ToInt32(Console.ReadLine());
switch (opt)
{
case 1: //it means option number 1
res = no1 + no2;
Console.WriteLine("\n{0} + {1} = {2}", no1, no2, res);
break;
case 2: //it means option number 2
res = no1 - no2;
Console.WriteLine("\n{0} - {1} = {2}", no1, no2, res);
break;
case 3: //it means option number 3
res = no1 * no2;
Console.WriteLine("\n{0} * {1} = {2}", no1, no2, res);
break;
case 4: //it means option number 4
res = (float)no1 / no2;
Console.WriteLine("\n{0} / {1} = {2}", no1, no2, res);
break;
default: //(And, this is the default, it will execute when the input value from user did not meet with any given Case)
Console.WriteLine("\nInvalid option...Please try again.");
goto label; //give command to program go where the label is located in the program
}
Console.ReadLine();
}
}
}
Output :
