如果选中了两个复选框怎么办？

Question

在这个程序中，如果条件是选中两个复选框时，我无法满足第三个其他条件。它仍然显示40％的价格，而它应显示50％。

int p      = Integer.parseInt(jTextField1.getText()); //Product Price
int dis    = 40*p/100; // 40% discount
int adis   = 10*p/100; // 10% discount
int tdis   = 50*p/100; // 50% discount
int fpd    = p-dis;    // final price (40% discount)
int fpad   = p-adis;   // final price (10% discount)
int fptdis = p-tdis;   // final price (50% discount)

if (jCheckBox1.isSelected()==true)
    jLabel3.setText("dis is 40% "+"dis amt is "+dis+"final price is "+fpd);
else if (jCheckBox2.isSelected()==true)
    jLabel3.setText("dis is 10% "+"dis amt is "+adis+"final price is "+fpad);
// This condition is not working!!
else if (jCheckBox1.isSelected()==true && jCheckBox2.isSelected()==true)
    jLabel3.setText("dis is 50% "+"dis amt is "+tdis+"final price is "+fptdis);
else jLabel3.setText("no discount"+"final price is "+p);