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C# Sharp Exercises: Find the last day of a month against a given date

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C# Sharp DateTime : Exercise-55 with Solution

Write a program in C# Sharp to find the last day of a month against a given date.

Test Data:
Input the Day : 16
Input the Month : 06
Input the Year : 2016
Expected Output :

The formatted Date is : 16/06/2016                                     
 The last day of the month for the above date is : 30/06/2016

C# Sharp Code:

using System;

class dttimeex55
{
    static void Main()
    {
	int yr,mn,dt;
    Console.Write("\n\n Find the last day of the month against a given date :\n");
	Console.Write("----------------------------------------------------------\n");
	
	Console.Write(" Input the Day : ");
    dt = Convert.ToInt32(Console.ReadLine());	
    Console.Write(" Input the Month : ");
    mn = Convert.ToInt32(Console.ReadLine());	
    Console.Write(" Input the Year : ");
    yr = Convert.ToInt32(Console.ReadLine());		
	DateTime d = new DateTime(yr, mn, dt);
	Console.WriteLine(" The formatted Date is : {0}",d.ToString("dd/MM/yyyy"));
	Console.WriteLine(" The last day of the month for the above date is : {0}\n", LastDayOfMonth(d).ToString("dd/MM/yyyy"));
    }
    public static DateTime LastDayOfMonth(DateTime dt)
    {
        DateTime ss= new DateTime(dt.Year, dt.Month, 1);
		return ss.AddMonths(1).AddDays(-1);
    }
}

C# Sharp Practice online:

using System;

class dttimeex55
{
    static void Main()
    {
	int yr,mn,dt;
    Console.Write("\n\n Find the last day of the month against a given date :\n");
	Console.Write("----------------------------------------------------------\n");
	
	Console.Write(" Input the Day : ");
    dt = Convert.ToInt32(Console.ReadLine());	
    Console.Write(" Input the Month : ");
    mn = Convert.ToInt32(Console.ReadLine());	
    Console.Write(" Input the Year : ");
    yr = Convert.ToInt32(Console.ReadLine());		
	DateTime d = new DateTime(yr, mn, dt);
	Console.WriteLine(" The formatted Date is : {0}",d.ToString("dd/MM/yyyy"));
	Console.WriteLine(" The last day of the month for the above date is : {0}\n", LastDayOfMonth(d).ToString("dd/MM/yyyy"));
    }
    public static DateTime LastDayOfMonth(DateTime dt)
    {
        DateTime ss= new DateTime(dt.Year, dt.Month, 1);
		return ss.AddMonths(1).AddDays(-1);
    }
}

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