PBKK B - Latihan Membuat Aplikasi Dekstop #1 - Kalkulator

 Latihan Membuat Aplikasi Dekstop #1 - Kalkulator

14 Februari 2023

Pada latihan kali ini saya membuat aplikasi dekstop sederhana menggunakan .Net Framework dengan bahasa C# yaitu Aplikasi Kalkulator Windows

Referensi yang saya gunakan berasal dari youtube channel Artan Academy

Beberapa fitur yang ada pada aplikasi kalkulator ini adalah

• Menghitung operasi aritmatika tambah (+), kurang (-), kali (*), dan bagi.
• Menghitung operasi matematika lainnya seperti akar, pangkat, minus, dll.
• Fitur Clear Entry, Clear All, dan Delete
• Melihat dan menghapus history perhitungan

Repository lengkap aplikasi dapat diakses melalui Github

Demo Aplikasi

• Operasi aritmatika

• Operasi matematika lainnya

• History

Source Code

	namespace CalculatorApp
	{
	public partial class Form1 : Form
	{
	// Field
	Double result = 0;
	string operation = string.Empty;
	string firstNum, secondNum;
	bool enterValue = false;
	public Form1()
	{
	InitializeComponent();
	}
	private void BtnMathOperation_Click(object sender, EventArgs e)
	{
	if (result != 0) BtnEquals.PerformClick();
	else result = Double.Parse(TxtDisplay1.Text);
	Button button = (Button)sender;
	operation = button.Text;
	enterValue = true;
	if (TxtDisplay1.Text != "0")
	{
	TxtDisplay2.Text = firstNum = $"{result}{operation}";
	TxtDisplay1.Text = string.Empty;
	}
	}
	private void BtnEquals_Click(object sender, EventArgs e)
	{
	secondNum = TxtDisplay1.Text;
	TxtDisplay2.Text = $"{TxtDisplay2.Text}{TxtDisplay1.Text}=";
	if (TxtDisplay1.Text != string.Empty)
	{
	if (TxtDisplay1.Text == "0") TxtDisplay2.Text = string.Empty;
	switch (operation)
	{
	case "+":
	TxtDisplay1.Text = (result + Double.Parse(TxtDisplay1.Text)).ToString();
	RtBoxDisplayHistory.AppendText($"{firstNum}{secondNum}={TxtDisplay1.Text}\n");
	break;
	case "-":
	TxtDisplay1.Text = (result - Double.Parse(TxtDisplay1.Text)).ToString();
	RtBoxDisplayHistory.AppendText($"{firstNum}{secondNum}={TxtDisplay1.Text}\n");
	break;
	case "÷":
	TxtDisplay1.Text = (result / Double.Parse(TxtDisplay1.Text)).ToString();
	RtBoxDisplayHistory.AppendText($"{firstNum}{secondNum}={TxtDisplay1.Text}\n");
	break;
	case "×":
	TxtDisplay1.Text = (result * Double.Parse(TxtDisplay1.Text)).ToString();
	RtBoxDisplayHistory.AppendText($"{firstNum}{secondNum}={TxtDisplay1.Text}\n");
	break;
	default: TxtDisplay2.Text = $"{TxtDisplay1.Text}";
	break;
	}
	result = Double.Parse(TxtDisplay1.Text);
	operation = string.Empty;
	}
	}
	private void BtnHistory_Click(object sender, EventArgs e)
	{
	PnlHistory.Height = (PnlHistory.Height == 5) ? PnlHistory.Height = 350 : 5;
	}
	private void BtnClearHistory_Click(object sender, EventArgs e)
	{
	RtBoxDisplayHistory.Clear();
	if (RtBoxDisplayHistory.Text == string.Empty)
	RtBoxDisplayHistory.Text = "There is no history";
	}
	private void BtnBackspace_Click(object sender, EventArgs e)
	{
	if (TxtDisplay1.Text.Length > 0)
	TxtDisplay1.Text = TxtDisplay1.Text.Remove(TxtDisplay1.Text.Length - 1, 1);
	if (TxtDisplay1.Text == string.Empty) TxtDisplay1.Text = "0";
	}
	private void BtnC_Click(object sender, EventArgs e)
	{
	TxtDisplay1.Text = "0";
	TxtDisplay2.Text = string.Empty;
	result = 0;
	}
	private void BtnCE_Click(object sender, EventArgs e)
	{
	TxtDisplay1.Text = "0";
	}
	private void BtnOperations_Click(object sender, EventArgs e)
	{
	Button button = (Button)sender;
	operation = button.Text;
	switch(operation)
	{
	case "√x":
	TxtDisplay2.Text = $"√({TxtDisplay1.Text})";
	TxtDisplay1.Text = Convert.ToString(Math.Sqrt(Double.Parse(TxtDisplay1.Text)));
	break;
	case "^2":
	TxtDisplay2.Text = $"({TxtDisplay1.Text})^2";
	TxtDisplay1.Text = Convert.ToString(Convert.ToDouble(TxtDisplay1.Text) * Convert.ToDouble(TxtDisplay1.Text));
	break;
	case "1/x":
	TxtDisplay2.Text = $"1/({TxtDisplay1.Text})";
	TxtDisplay1.Text = Convert.ToString(1.0 / Convert.ToDouble(TxtDisplay1.Text));
	break;
	case "%":
	TxtDisplay2.Text = $"%({TxtDisplay1.Text})";
	TxtDisplay1.Text = Convert.ToString(Convert.ToDouble(TxtDisplay1.Text) / Convert.ToDouble(100));
	break;
	case "±":
	TxtDisplay1.Text = Convert.ToString(-1 * Convert.ToDouble(TxtDisplay1.Text));
	break;
	}
	RtBoxDisplayHistory.AppendText($"{TxtDisplay2.Text}={TxtDisplay1.Text}\n");
	}
	private void BtnExit_Click(object sender, EventArgs e)
	{
	Application.Exit();
	}
	private void BtnNum_Click(object sender, EventArgs e)
	{
	if (TxtDisplay1.Text == "0" || enterValue) TxtDisplay1.Text = string.Empty;
	enterValue = false;
	Button button = (Button)sender;
	if (button.Text == ".")
	{
	if (!TxtDisplay1.Text.Contains("."))
	TxtDisplay1.Text += button.Text;
	}
	else TxtDisplay1.Text += button.Text;
	}
	}
	}

view raw Form1.cs hosted with ❤ by GitHub

Nama : Arief Badrus Sholeh

NRP : 5025201228

Kelas : PBKK B

Tahun : 2022/2023