所以我有一个 swing 程序，我应该计算在酒店房间里呆“x”周的费用。
我希望能够让用户输入“x”，但我不确定我会使用什么代码。到目前为止，这是我的代码。
public class Hotel extends JFrame
{
int room1 = 0;
int room2 = 0;
int weeks;
int boat = 0;
JPanel p, p1;
JLabel l, l1;
JTextField t, t1;
JButton b;
JCheckBox b1, b2, b3;
Hotel()
{
setTitle("Hotel Room Selection");
setSize(800, 800);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
buildPanel();
add(p);
setVisible(true);
}
void buildPanel()
{
l = new JLabel("Select a room type");
l1 = new JLabel("How many weeks will you be staying?");
b = new JButton("Confirm");
b1 = new JCheckBox("1 bedroom ($600 per week)");
b2 = new JCheckBox("2 Bedroom ($850 per week)");
b3 = new JCheckBox("Rowboat rental ($60 per week)");
p = new JPanel();
p1 = new JPanel();
add(p);
p.add(l);
p.add(b1);
p.add(b2);
p.add(b3);
p.add(l1);
p.add(b);
add(p1);
b.addActionListener(new buttonlistener());
b1.addItemListener(new cbListener());
b2.addItemListener(new cbListener());
b3.addItemListener(new cbListener());
setVisible(true);
}
class buttonlistener implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
String i = t.getText();
int val = Integer.parseInt(i);
val = (room1 + room2 + boat) * weeks;
JOptionPane.showMessageDialog(null, "Total is " + val);
}
}
class cbListener implements ItemListener
{
public void itemStateChanged(ItemEvent b)
{
if (b.getSource() == b1)
{
if (b1.isSelected())
{
room1 = 600;
}
if (b.getSource() == b3)
{
if (b3.isSelected())
{
boat = 60;
}
}
}
else if (b.getSource() == b2)
{
if (b2.isSelected())
{
room2 = 850;
}
if (b.getSource() == b3)
{
if (b3.isSelected())
{
boat = 60;
}
}
}
}
}
public static void main(String[] args)
{
Hotel a1 = new Hotel();
}
}
最佳答案
两个最简单的解决方案是...
JFormattedTextField
和
JSpinner
看...
有关更多详细信息(对于我的钱，JSpinner 将是我的选择)
关于java - 如何在 java swing 中为我的程序添加整数输入？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/18007121/