Lab 9 | C# Online Compiler

Lab 9 by Namin Cho

using System;
					
public class Program
{
	public static void Main()
	{
		/*Q1: Create an int Array with the first digits of Pi: 3,1,4,1,5,9
			- Print out the 3rd element of the array. (Hint: the index starts from 0)
			- Print the length of an array.
			- Print the upper bound of an array.
			- Sort this array and print out the 3rd element.*/
		
			int[] intPi = new int[]{3,1,4,1,5,9};
		
			Console.WriteLine("The third element of the array is: " + intPi[2]);
		
			Console.WriteLine("The length of the array is: " + intPi.Length);
		
			Console.WriteLine("The upper bound of the array is: " + intPi.GetUpperBound(0));
		 
			Array.Sort(intPi);
			Console.WriteLine("The third element of the sorted array is: " + intPi[2]);
			
			Console.WriteLine("============================================");
		/*Q2: Create a string Array
			- This is an array that holds the names of the 12 months.
			- Please set up the value for these 12 months ("Jan" to "Dec").
			- Ask users to type a number ranging from 1 to 12.
			- Print out the corresponding month. (If a user types 2, you should show "Feb".)
				- (Hint: the index starts from 0)*/
			
			string[] strMonth = new string[12];
			string strnumber;
		
			strMonth [0]= "Jan";
			strMonth [1]= "Feb";
			strMonth [2]= "Mar";
			strMonth [3]= "Apr";
			strMonth [4]= "May";
			strMonth [5]= "Jun";
			strMonth [6]= "Jul";
			strMonth [7]= "Aug";
			strMonth [8]= "Sep";
			strMonth [9]= "Oct";
			strMonth [10]= "Nov";
			strMonth [11]= "Dec";
		
			Console.WriteLine("Please enter a number between 1 and 12.");
			strnumber = Console.ReadLine();
			int number = Convert.ToInt32(strnumber);
		
			if (number == 1)
		{
			Console.WriteLine(strMonth[0]);
		}
		else if (number == 2)
		{
			Console.WriteLine(strMonth[1]);
		}
		else if (number == 3)
		{
			Console.WriteLine(strMonth[2]);
		}
		else if (number == 4)
		{
			Console.WriteLine(strMonth[3]);
		}
		else if (number == 5)
		{
			Console.WriteLine(strMonth[4]);
		}
		else if (number == 6)
		{
			Console.WriteLine(strMonth[5]);
		}
		else if (number == 7)
		{
			Console.WriteLine(strMonth[6]);
		}
		else if (number == 8)
		{
			Console.WriteLine(strMonth[7]);
		}
		else if (number == 9)
		{
			Console.WriteLine(strMonth[8]);
		}
		else if (number == 10)
		{
			Console.WriteLine(strMonth[9]);
		}
		else if (number == 11)
		{
			Console.WriteLine(strMonth[10]);
		}
		else if (number == 12)
		{
			Console.WriteLine(strMonth[11]);
		}
		else
		{
			Console.WriteLine("Please enter a value between 1 and 12");
		
	}
}
}

 
using System;
                    
public class Program
{
    public static void Main()
    {
        /*Q1: Create an int Array with the first digits of Pi: 3,1,4,1,5,9
            - Print out the 3rd element of the array. (Hint: the index starts from 0)
            - Print the length of an array.
            - Print the upper bound of an array.
            - Sort this array and print out the 3rd element.*/
        
            int[] intPi = new int[]{3,1,4,1,5,9};
        
            Console.WriteLine("The third element of the array is: " + intPi[2]);
        
            Console.WriteLine("The length of the array is: " + intPi.Length);
        
            Console.WriteLine("The upper bound of the array is: " + intPi.GetUpperBound(0));
         
            Array.Sort(intPi);
            Console.WriteLine("The third element of the sorted array is: " + intPi[2]);
            
            Console.WriteLine("============================================");
        /*Q2: Create a string Array
            - This is an array that holds the names of the 12 months.
            - Please set up the value for these 12 months ("Jan" to "Dec").
            - Ask users to type a number ranging from 1 to 12.
            - Print out the corresponding month. (If a user types 2, you should show "Feb".)
                - (Hint: the index starts from 0)*/
            
            string[] strMonth = new string[12];
            string strnumber;
        
            strMonth [0]= "Jan";
            strMonth [1]= "Feb";
            strMonth [2]= "Mar";
            strMonth [3]= "Apr";
            strMonth [4]= "May";
            strMonth [5]= "Jun";
            strMonth [6]= "Jul";
            strMonth [7]= "Aug";
            strMonth [8]= "Sep";
            strMonth [9]= "Oct";
            strMonth [10]= "Nov";
            strMonth [11]= "Dec";
        
            Console.WriteLine("Please enter a number between 1 and 12.");
            strnumber = Console.ReadLine();
            int number = Convert.ToInt32(strnumber);
        
            if (number == 1)
        {
            Console.WriteLine(strMonth[0]);
        }
        else if (number == 2)
        {
            Console.WriteLine(strMonth[1]);
        }
        else if (number == 3)
        {
            Console.WriteLine(strMonth[2]);
        }
        else if (number == 4)
        {
            Console.WriteLine(strMonth[3]);
        }
        else if (number == 5)
        {
            Console.WriteLine(strMonth[4]);
        }
        else if (number == 6)
        {
            Console.WriteLine(strMonth[5]);
        }
        else if (number == 7)
        {
            Console.WriteLine(strMonth[6]);
        }
        else if (number == 8)
        {
            Console.WriteLine(strMonth[7]);
        }
        else if (number == 9)
        {
            Console.WriteLine(strMonth[8]);
        }
        else if (number == 10)
        {
            Console.WriteLine(strMonth[9]);
        }
        else if (number == 11)
        {
            Console.WriteLine(strMonth[10]);
        }
        else if (number == 12)
        {
            Console.WriteLine(strMonth[11]);
        }
        else
        {
            Console.WriteLine("Please enter a value between 1 and 12");
        
    }
}
}

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