protected void Button1_Click(object sender, EventArgs e) { float x = float.Parse(txt_x.Text); float y = float.Parse(txt_y.Text); float z = float.Parse(txt_z.Text); int a = Convert.ToInt32(txt_a.Text); int b = Convert.ToInt32(txt_b.Text); Adder obj = new Adder(); float result1 = obj.Add(x, y); SibstractionClass obj1 = new SibstractionClass(); result1 = obj1.SubRes(result1, z); addSubdiv obj2 = new addsubdiv(); result1 = obj.Addsubdiv(result1, a); addsubdivmul obj = new addsubdivmul(); result1 = obj.Addsubdivmul(result1, b); Label6.Text = result1.ToString(); }