请问各位，如何实现在Main窗口中点击按钮弹出用户另一个窗口RequestValueDialog，让用户在两个textfield中输入数据，点击OK后将输入数据回传给原来窗口显示在文本框中？
因为类中有其他方法，可以不使用静态变量吗？
貌似不能传图片，那就传简单的示例代码。
Main.java
- Java code
public class Main extends JFrame (){ private JPanel contentPane; private JButton btnClick; private JTextField textField; public static void main(String[] args) { new Main().setVisible(true); } public Main() { initGUI(); } private void initGUI() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); setContentPane(contentPane); contentPane.setLayout(new BorderLayout(0, 0)); btnClick = new JButton("click"); contentPane.add(btnClick, BorderLayout.NORTH); textField = new JTextField(); contentPane.add(textField, BorderLayout.CENTER); }}RequestValueDialog.java
- Java code
public class RequestValueDialog extends JDialog(){ public RequestValueDialog() { setBounds(100, 100, 450, 300); getContentPane().setLayout(new BorderLayout()); contentPanel.setLayout(new FlowLayout()); contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5)); getContentPane().add(contentPanel, BorderLayout.CENTER); { textField = new JTextField(); contentPanel.add(textField); textField.setColumns(10); } { textField_1 = new JTextField(); textField_1.setColumns(10); contentPanel.add(textField_1); } { textField_2 = new JTextField(); textField_2.setColumns(10); contentPanel.add(textField_2); } { JPanel buttonPane = new JPanel(); buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT)); getContentPane().add(buttonPane, BorderLayout.SOUTH); { JButton okButton = new JButton("OK"); okButton.setActionCommand("OK"); buttonPane.add(okButton); getRootPane().setDefaultButton(okButton); } { JButton cancelButton = new JButton("Cancel"); cancelButton.setActionCommand("Cancel"); buttonPane.add(cancelButton); } } }}------解决方案--------------------
JDialog本身有构造方法new JDialog(Frame owner, String title, boolean modal),你直接写
public RequestValueDialog(Frame owner, String title, boolean modal) {
super(owner,title, modal);
………………
}
就行了
------解决方案--------------------
第一个JTextField的内容可以回显到主Frame上面，你参考看看吧
- Java code
import javax.swing.*;import javax.swing.border.EmptyBorder;import java.awt.*;import java.awt.event.ActionListener;import java.awt.event.ActionEvent;public class Main extends JFrame implements ActionListener { private JPanel contentPane; private JButton btnClick; public JTextField getTextField() { return textField; } public void setTextField(JTextField textField) { this.textField = textField; } private JTextField textField; public static void main(String[] args) { new Main().setVisible(true); } public Main() { initGUI(); } private void initGUI() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); setContentPane(contentPane); contentPane.setLayout(new BorderLayout(0, 0)); btnClick = new JButton("click"); btnClick.addActionListener(this); contentPane.add(btnClick, BorderLayout.NORTH); textField = new JTextField(); contentPane.add(textField, BorderLayout.CENTER); } @Override public void actionPerformed(ActionEvent e) { //To change body of implemented methods use File | Settings | File Templates. if(e.getSource()==btnClick){ RequestValueDialog dialog=new RequestValueDialog(this); dialog.setVisible(true); } }}