private void btnmultiple_Click(object sender, EventArgs e)
{
if (validateinput())
{
int multiple = mycalculator.multiple((int)nmb1.Value, (int)nmb2.Value);
MessageBox.Show("int multiple:" + multiple);
}
}
private void btnmultiple_Click(object sender, EventArgs e)
{
if (validateinpot())
{
int multiple = calculator.multiple((int)txtnumber1.Value, (int)txtnumber2.Value);
MessageBox.Show("int multiple:" + multiple);
}
}
