double total1 = 0;
double total2 = 0;
bool plusButtonClicked = false;
bool minusButtonClicked = false;
bool multiplyButtonClicked = false;
bool divideButtonClicked = false;
private void btnPlus_Click(object sender, EventArgs e)
{
total1 += Double.Parse(txtDisplay.Text);
txtDisplay.Clear();
plusButtonClicked = true;
minusButtonClicked = false;
multiplyButtonClicked = false;
divideButtonClicked = false;
}
private void btnMinus_Click(object sender, EventArgs e)
{
total1 += Double.Parse(txtDisplay.Text);
txtDisplay.Clear();
plusButtonClicked = false;
minusButtonClicked = true;
multiplyButtonClicked = false;
divideButtonClicked = false;
}
private void btnMultiply_Click(object sender, EventArgs e)
{
total1 += Double.Parse(txtDisplay.Text);
txtDisplay.Clear();
plusButtonClicked = false;
minusButtonClicked = false;
multiplyButtonClicked = true;
divideButtonClicked = false;
}
private void btnDivide_Click(object sender, EventArgs e)
{
total1 += Double.Parse(txtDisplay.Text);
txtDisplay.Clear();
plusButtonClicked = false;
minusButtonClicked = false;
multiplyButtonClicked = false;
divideButtonClicked = true;
}
private void btnEqual_Click(object sender, EventArgs e)
{
if (plusButtonClicked == true) {
total2 = total1 + Double.Parse(txtDisplay.Text);
txtDisplay.Text = total2.ToString();
total1 = 0;
}
else if (minusButtonClicked == true)
{
total2 = total1 - Double.Parse(txtDisplay.Text);
txtDisplay.Text = total2.ToString();
total1 = 0;
}
else if (multiplyButtonClicked == true)
{
total2 = total1 * Double.Parse(txtDisplay.Text);
txtDisplay.Text = total2.ToString();
total1 = 0;
}
else if (divideButtonClicked == true)
{
total2 = total1 / Double.Parse(txtDisplay.Text);
txtDisplay.Text = total2.ToString();
total1 = 0;
}
}
double total2 = 0;
bool plusButtonClicked = false;
bool minusButtonClicked = false;
bool multiplyButtonClicked = false;
bool divideButtonClicked = false;
private void btnPlus_Click(object sender, EventArgs e)
{
total1 += Double.Parse(txtDisplay.Text);
txtDisplay.Clear();
plusButtonClicked = true;
minusButtonClicked = false;
multiplyButtonClicked = false;
divideButtonClicked = false;
}
private void btnMinus_Click(object sender, EventArgs e)
{
total1 += Double.Parse(txtDisplay.Text);
txtDisplay.Clear();
plusButtonClicked = false;
minusButtonClicked = true;
multiplyButtonClicked = false;
divideButtonClicked = false;
}
private void btnMultiply_Click(object sender, EventArgs e)
{
total1 += Double.Parse(txtDisplay.Text);
txtDisplay.Clear();
plusButtonClicked = false;
minusButtonClicked = false;
multiplyButtonClicked = true;
divideButtonClicked = false;
}
private void btnDivide_Click(object sender, EventArgs e)
{
total1 += Double.Parse(txtDisplay.Text);
txtDisplay.Clear();
plusButtonClicked = false;
minusButtonClicked = false;
multiplyButtonClicked = false;
divideButtonClicked = true;
}
private void btnEqual_Click(object sender, EventArgs e)
{
if (plusButtonClicked == true) {
total2 = total1 + Double.Parse(txtDisplay.Text);
txtDisplay.Text = total2.ToString();
total1 = 0;
}
else if (minusButtonClicked == true)
{
total2 = total1 - Double.Parse(txtDisplay.Text);
txtDisplay.Text = total2.ToString();
total1 = 0;
}
else if (multiplyButtonClicked == true)
{
total2 = total1 * Double.Parse(txtDisplay.Text);
txtDisplay.Text = total2.ToString();
total1 = 0;
}
else if (divideButtonClicked == true)
{
total2 = total1 / Double.Parse(txtDisplay.Text);
txtDisplay.Text = total2.ToString();
total1 = 0;
}
}

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