最近，我一直在制作类似节目的游戏节目。我的目的是在单击按钮时将一个问题切换到下一个问题（每个问题都在JPanel上）。 这是我的代码：
Frame.java
public class Frame{
static JFrame f = new JFrame();
static JPanel container = new JPanel();
CardLayout cl = new CardLayout();
static Question1 q1 = new Question1();
static Question2 q2 = new Question2();
static Question3 q3 = new Question3();
static Container0 cont = new Container0();
public static void main(String[] args){
f.add(cont);
f.setSize(600,800);
f.setVisible(true);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(600,800);
}
}
Question1.java
public class Question1 extends JPanel{
private static final long serialVersionUID = 1L;
final static Question2 q2 = new Question2();
public static String Question = "Why does Grover tell Percy not to retaliate when Nancy Bobofit is throwing peanut butter and ketchup sandwich chunks into Grover’s hair?";
public static String AnswerA = "A : He wanted Percy to save it for a better moment.";
public static String AnswerB = "B : He wanted Percy to keep his good behavior record.";
public static String AnswerC = "C : Percy was already on probation and he didn’t want him in any more trouble.";
public static String AnswerD = "D : Nancy Bobofit had anger issues and Grover didn’t want to disturb her.";
public static JButton AB = new JButton();
public static JButton BB = new JButton();
public static JButton CB = new JButton();
public static JButton DB = new JButton();
CardLayout cl = new CardLayout();
public static boolean drawNext = false;
public Question1(){
this.setBackground(Color.BLACK);
this.setSize(600,800);
this.add(AB);
this.add(BB);
this.add(CB);
this.add(DB);
AB.setSize(50,25);
AB.setText("A");
AB.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e) {
}
});
AB.setVisible(true);
BB.setSize(50,25);
BB.setText("B");
BB.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
}
});
BB.setVisible(true);
CB.setSize(50,25);
CB.setText("C");
CB.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
}
});
CB.setVisible(true);
DB.setSize(50,25);
DB.setText("D");
DB.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
}});
DB.setVisible(true);
}
public void paintComponent(Graphics g){
super.paintComponent(g);
g.setColor(Color.GREEN);
g.drawString(Question, 0, 75);
g.drawString(AnswerA, 0, 125);
g.drawString(AnswerB, 0, 200);
g.drawString(AnswerC, 0, 275);
g.drawString(AnswerD, 0, 350);
}
Question2.java
public class Question2 extends JPanel{
private static final long serialVersionUID = 1L;
public static boolean isCorrect1;
public static String Question = "What did Mr. Brunner ask Percy about the carving in the museum?";
public static String AnswerA = "A : ”Perhaps you’ll tell us what this picture represents?”";
public static String AnswerB = "B : ”Perhaps you’ll tell me what this photo represents?”";
public static String AnswerC = "C : ”How does this picture relate to the modern day world?”";
public static String AnswerD = "D : ”Could you please jump up and down like a bunny rabbit?”";
public static JButton AB = new JButton();
public static JButton BB = new JButton();
public static JButton CB = new JButton();
public static JButton DB = new JButton();
Question3 q3 = new Question3();
public Question2(){
this.setBackground(Color.BLACK);
this.setSize(600,800);
this.add(AB);
this.add(BB);
this.add(CB);
this.add(DB);
AB.setSize(50,25);
AB.setText("A");
AB.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e) {
}
});
BB.setSize(50,25);
BB.setText("B");
BB.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
}
});
CB.setSize(50,25);
CB.setText("C");
CB.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
}
});
DB.setSize(50,25);
DB.setText("D");
DB.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
}});
this.setVisible(true);
}
public void paintComponent(Graphics g){
super.paintComponent(g);
g.setColor(Color.GREEN);
g.drawString(Question, 0, 75);
g.drawString(AnswerA, 0, 125);
g.drawString(AnswerB, 0, 200);
g.drawString(AnswerC, 0, 275);
g.drawString(AnswerD, 0, 350);
}
}
Container0.java
public class Container0 extends JPanel{
static CardLayout cl = new CardLayout();
static Question1 q1 = new Question1();
static Question2 q2 = new Question2();
static Question3 q3 = new Question3();
public Container0(){
this.setLayout(cl);
this.setSize(600,800);
this.add(q1,"1");
this.add(q2,"2");
this.add(q3,"3");
cl.show(this, "1");
}
public void show2(){
cl.show(this,"2");
}
public void show3(){
}
}