PROSAGA码农传奇-生产运营/行业运营-Java JOptionPane单输出中的多输入和算术运算

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    好吧......如果你想在一个对话框中有几个输入，那么你可以使用
    <a href="https://docs.oracle.com/javase/7/docs/api/javax/swing/JOptionPane.html" rel="nofollow noreferrer">
      的
        JOptionPane.showConfirmDialog（）
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     方法并提供自定义JPanel（一些
    <a href="https://www.mkyong.com/swing/java-swing-how-to-make-a-confirmation-dialog/" rel="nofollow noreferrer">
      例子
    </A>
     这里）。换句话说，您创建一个自定义对话框。
  
  
    在你的情况下，这是你可以做到的一种方式：
  
   <pre>
 <code>
 String dialogMessage = "Please suppliy digits to the following input boxes:";
int btns = JOptionPane.OK_CANCEL_OPTION;
BorderLayout layout = new BorderLayout();
JPanel panel = new JPanel(layout);
JLabel label = new JLabel("<html>" + dialogMessage + " </html>");
panel.add(label, BorderLayout.NORTH);

JPanel p = new JPanel(new BorderLayout(5, 5));
JPanel labels = new JPanel(new GridLayout(0, 1, 2, 2));
labels.add(new JLabel("Input A", SwingConstants.RIGHT));
labels.add(new JLabel("Input B", SwingConstants.RIGHT));
labels.add(new JLabel("Input C", SwingConstants.RIGHT));
labels.add(new JLabel("Input D", SwingConstants.RIGHT));
p.add(labels, BorderLayout.WEST);

JPanel controls = new JPanel(new GridLayout(0, 1, 2, 2));
JTextField inputA = new JTextField();
controls.add(inputA);
JTextField inputB = new JTextField();
controls.add(inputB);
JTextField inputC = new JTextField();
controls.add(inputC);
JTextField inputD = new JTextField();
controls.add(inputD);
p.add(controls, BorderLayout.CENTER);
panel.add(p);

// Get Input from User...
int res = JOptionPane.showConfirmDialog(null, panel, "My Dialog Title", btns);
if (res == JOptionPane.OK_OPTION) {
    System.out.println("Input A is: " + inputA.getText());
    System.out.println("Input B is: " + inputB.getText());
    System.out.println("Input C is: " + inputC.getText());
    System.out.println("Input D is: " + inputD.getText());
}

</code>
 </pre>
  
    您可以修改此概念以满足您的需求。
  
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