# ISYS 350, Assignment 2, Part 1

ISYS 350, Assignment 2,

Part 1:

Create a C# Form with a textbox and a button. The box isfor a user to enter a number

of seconds. And when the user clicks the button, theprogram displays the equivalent

number of hours, minutes and seconds using a MessageBox.Show method. If the

seconds entered is less than 60, your program shouldonly display the seconds; if the

seconds is a least 60 and less than 3600, your programshould display minutes and

seconds; if the second is at least 3600, your programshould display hours, minutes

and seconds.

Use the following data to test yourprogram:

47 seconds: 47 seconds (don’t show 0 hour and 0minute)

645 seconds: 10 minutes, 45 seconds (don’t show 0hour)

7565 seconds: 2 hours, 6 minutes, 5 seconds

Requirements:

1. Input validation: The number of seconds cannot exceed86400. You must use

textbox’s Validating event to do thevalidation.

2. Turn in the form’s screenshot and the code. (Note:You can use the Alt

+ PrintScrn keys to capture only the activewindow.)

Part 2: An electric company charges to their customersbased on Kilowatt-Hours

(Kwh) used. The rules to compute the chargeare:

First 100 Kwh, 35 cents per Kwh

Each of the next 100 Kwh (up to 200 Kwh), 45 cents perKwh

(the first 100 Kwh used is still charged at 35 centseach)

Each of the next 300 Kwh (up to 500 Kwh) 65 cents perKwh

All Kwh over 500, 80 cents per KH

Create a C# Form with a textbox to enter Kwh used, aread-only textbox to display the

electricity charges, and a button to compute thecharges. The Kwh used could be a

number with decimals.

Requirements:

1. Input validation: Use the KWH textbox validatingevent to ensure the KWH cannot

exceed 2000. Test your program with (1) Kwh=4500, (2)Kwh = 350

2. Turn in the form’s screenshot and thecode

Code:-

1)

using System;

using System.Windows.Forms;

namespace ProgramToConvertSecondsToMinutesHours

{

public partial class CalculteTime :Form

{

intmySeconds;

publicCalculteTime()

{

InitializeComponent();

}

private voidbtnTime_Click(object sender, EventArgs e)

{

mySeconds= System.Convert.ToInt32(txtTime.Text);

MessageBox.Show(ConvertToTime(mySeconds));

}

public stringConvertToTime(int timeInSeconds)

{

intmyHours = mySeconds / 3600;

mySeconds%= 3600;

intmyMinutes = mySeconds / 60;

mySeconds%= 60;

stringmySec = mySeconds.ToString(),

myMin= myMinutes.ToString(),

myHou= myHours.ToString();

if(myHours< 10)

{

myHou= myHou.Insert(0, “0”);

}

if(myMinutes< 10)

{

myMin= myMin.Insert(0, “0”);

}

if(mySeconds< 10)

{

mySec= mySec.Insert(0, “0”);

}

if(myMinutes== 0 && myHours == 0)

{

returnmySec + ” Seconds”;

}

elseif (myHours == 0)

{

returnmyMin + ” Minutes” + ” ,” + mySec + ” Seconds”;

}

else

{

returnmyHou + ” Hours” + ” , ” + myMin + ” Minutes” + ” , ” + mySec + “Seconds”;

}

}

private voidtxtTime_MouseLeave(object sender, EventArgs e)

{

mySeconds= System.Convert.ToInt32(txtTime.Text);

if(mySeconds > 86400)

{

MessageBox.Show(“Entervalid time in seconds (less than 86400)”);

}

}

}

}

Code Screenshots:-

2)

using System;

using System.Windows.Forms;

namespace ProgramToConvertSecondsToMinutesHours

{

public partial class Electricity_Charge: Form

{

publicElectricity_Charge()

{

InitializeComponent();

}

{

}

private voidtxtElectricity_MouseLeave(object sender, EventArgs e)

{

doubleelectricityInKwh = double.Parse(txtElectricity.Text);

if(electricityInKwh > 2000)

{

MessageBox.Show(“Electricityvalue can not exceed than 2000”);

}

}

private voidbtnCharge_Click(object sender, EventArgs e)

{

doubleelectricityInKwh = double.Parse(txtElectricity.Text);

txtElectricityCharge.Text=calculateCharge(electricityInKwh);

}

public stringcalculateCharge(double electricityInKwh)

{

doubleamount;

if(electricityInKwh <= 100)

{

amount= electricityInKwh * 35;

}

elseif (electricityInKwh <= 200)

{

amount= 2500 + ((electricityInKwh – 100) * 45);

}

elseif (electricityInKwh <= 500)

{

amount= 6000 + ((electricityInKwh – 200) * 65);

}

else

{

amount= 16000 + ((electricityInKwh – 500) * 80);

}

returnamount.ToString();

}

}

}

Code Screenshots:-

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