Conditional Constructs Programming Example C#

In this chapter you will learn:
  • How to use conditional constructs in C# programming?
Qu 1: Write a program in which accept a number from the user and identify whether the number is even or odd.
Answer:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace even_number
{
    class Program
    {
        static void Main(string[] args)
        {
            int num;
            Console.Write("Enter your number:\t");
            num = Convert.ToInt32(Console.ReadLine());

            if (num % 2 == 0)
            {
                Console.WriteLine("{0} is Even Number", num);
            }
            else
            {
                Console.WriteLine("{0} is Odd number", num);
            }
            Console.ReadLine();
        }
    }   
}

 

Output

Enter your number :     56
56 is Even Number
__

Qu2:Write a program in which accept a number from the user between 1 to 7 and display corresponding days starting with Monday.
Hint: Use switch case
Answer:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace find_day
{
    class Program
    {
        static void Main(string[] args)
        {
            int opt;
        label:
            Console.Write("\n\nEnter your option (1-7) for days. 1 for Monday:\t");
            opt = Convert.ToInt32(Console.ReadLine());

            switch (opt)
            {
                case 1:
                    Console.WriteLine("Monday");
                    break;
                case 2:
                    Console.WriteLine("Tuesday");
                    break;
                case 3:
                    Console.WriteLine("Wednesday");
                    break;
                case 4:
                    Console.WriteLine("Thursday");
                    break;
                case 5:
                    Console.WriteLine("Friday");
                    break;
                case 6:
                    Console.WriteLine("Saturday");
                    break;
                case 7:
                    Console.WriteLine("Sunday");
                    break;
                default:
                    Console.WriteLine("Invalid option. Please try again\n");
                    goto label;
            }
            Console.ReadLine();
        }
    }   
}

Output

Enter your option <1-7> for days. 1 for Monday : 9
Invalid option. Please try again
Enter your option <1-7> for days. 1 for Monday : 2
Tuesday __
 

Summary

In this chapter you learned the some programming examples of conditional constructs in c# programming. In next chapter, some exercises are given. It is recommended you to must do the conditional constructs exercise honestly.

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