java - 按按钮打开一个新窗口 按下

Question

我试图通过按 JButton 打开一个新窗口。现在我的 Jbutton 的 actionPerformed 方法只是在按下它后关闭窗口。我希望它在旧窗口关闭时打开一个新窗口。我知道，这个问题已经被问过了，但我尝试了很多东西，似乎没有一个能完美地工作。

    import javax.swing.*;
    import javax.swing.event.*;
    import java.awt.*;
    import java.awt.event.*;
    import java.text.*;
    import java.util.Random;

     public class secondTab extends JFrame 
        {
            static JTabbedPane Pane = new JTabbedPane();

            static JPanel Second = new JPanel();
            static JPanel second = new JPanel(); // This Panel is inside the Second Panel

            static JButton guess1 = new JButton();
            static String words[] = new String[9];

            static Random getRandomWord = new Random();

            static int   rr;
            static  JButton Labels[] = new JButton[10];

     public static void main(String args[]) 
        {
            //construct frame
            new secondTab().show();
        }

     public secondTab() 
        {
            // code to build the form
            setTitle("Shopping Cart");

            setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     
            getContentPane().setLayout(new GridBagLayout());

            // position tabbed pane
            GridBagConstraints gridConstraints = new GridBagConstraints();
            gridConstraints.gridx = 1;
            gridConstraints.gridy = 1;
            Pane.setForeground(Color.YELLOW);
            Pane.setBackground(Color.MAGENTA);

            getContentPane().add(Pane, gridConstraints);
            getContentPane().setLayout(new GridBagLayout());


         //  Tabs Starts From Here

             Second.setLayout(new GridBagLayout());

             words[1] = "JAVA";
             words[2] = "FLOAT";
             words[3] = "VOID";
             words[4] = "MAIN";
             words[5] = "STATIC";
             words[6] = "FINAL";
             words[7] = "PRIVATE";
             words[8] = "CHAR";
             words[9] = "IF";


             rr = getRandomWord.nextInt(10);

             for(int i = 1; i <=words[rr].length(); i++)
                {
                    Labels[i] = new JButton();
                    gridConstraints.gridx = 0;
                    gridConstraints.gridy = 0;
                    second.add(Labels[i]);
                }  


            gridConstraints.gridx= 0;
            gridConstraints.gridx= 0;
            Second.add(second, gridConstraints);


            guess1.setText("New Word");
            gridConstraints.gridx = 0;
            gridConstraints.gridy = 2;
            Second.add(guess1, gridConstraints);

这是我的按钮的 Action Performed 方法

            // Action Performed method for the JButton guess1
            guess1.addActionListener(new ActionListener() 
                {
                    public void actionPerformed(ActionEvent e) 
                        {
                            dispose();
                        }
                });



            Pane.addTab("Game ", Second); 

            pack();
            Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
            setBounds((int) (0.5 * (screenSize.width - getWidth())), (int) (0.5 * 
                    (screenSize.height - getHeight())), getWidth(), getHeight());
        }

    }

Answer 1

只需在 dispose() 之后添加新的面板语句。例如:添加

guess1.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                dispose();
                new JFrame("New Window").show();
            }
        });

还有一点 - 您已经创建了包含 9 个元素的数组，并且您正试图在 10 个索引处插入，这会引发 ArrayIndexOutOfBound 异常。