当我单击开始按钮时，所有内容都消失了... 此外，如果我使用for循环编写x1，x2，x3 ...，也会显示错误。 我想使代码更短...
public class BubbleSort extends JFrame implements actionListener {
Timer tm = new Timer(5,this);
static int[] arr = new int[13];
int i = 0;
int j = 0;
int x1 = 20 + 60 * 0;
int x2 = 20 + 60 * 1;
int x3 = 20 + 60 * 2;
int x4 = 20 + 60 * 3;
int x5 = 20 + 60 * 4;
int x6 = 20 + 60 * 5;
int x7 = 20 + 60 * 6;
int x8 = 20 + 60 * 7;
int x9 = 20 + 60 * 8;
int x10 = 20 + 60 * 9;
int x11 = 20 + 60 * 10;
int x12 = 20 + 60 * 11;
int x13 = 20 + 60 * 12;
int y1 = 35 + 60 * 0;
int y2 = 35 + 60 * 1;
int y3 = 35 + 60 * 2;
int y4 = 35 + 60 * 3;
int y5 = 35 + 60 * 4;
int y6 = 35 + 60 * 5;
int y7 = 35 + 60 * 6;
int y8 = 35 + 60 * 7;
int y9 = 35 + 60 * 8;
int y10 = 35 + 60 * 9;
int y11 = 35 + 60 * 10;
int y12 = 35 + 60 * 11;
int y13 = 35 + 60 * 12;
int vel = 1;
private JPanel contentPane;
public void actionPerformed(actionEvent e) {
x1 = x1 + vel;
y1 = y1 + vel;
repaint();
}
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
InsertionSort frame = new InsertionSort();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public BubbleSort() {
Random r = new Random();
for (int i = 0; i < arr.length; i ++ ) {
arr[i] = r.nextInt(100);
}
setBackground(new Color(0,102));
setforeground(new Color(0,153));
setfont(new Font("American Typewriter",Font.BOLD | Font.ITALIC,15));
setTitle("Insertion Sort Algorithm");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setbounds(100,100,818,481);
contentPane = new JPanel();
contentPane.setBackground(new Color(204,255,204));
contentPane.setBorder(new EmptyBorder(5,5,5));
setContentPane(contentPane);
contentPane.setLayout(null);
JButton btnGoBack = new JButton("Go Back");
btnGoBack.addactionListener(new actionListener() {
public void actionPerformed(actionEvent e) {
contentPane.setVisible(false);
Animation2 b = new Animation2();
b.setVisible(true);
}
});
btnGoBack.setfont(new Font("American Typewriter",13));
btnGoBack.setbounds(17,16,97,36);
contentPane.add(btnGoBack);
JButton btnNewButton = new JButton("START");
btnNewButton.addactionListener(new actionListener() {
public void actionPerformed(actionEvent e) {
tm.start();
}
});
btnNewButton.setfont(new Font("American Typewriter",13));
btnNewButton.setbounds(101,376,117,43);
contentPane.add(btnNewButton);
JButton btnNewButton_1 = new JButton("PAUSE");
btnNewButton_1.addactionListener(new actionListener() {
public void actionPerformed(actionEvent e) {
tm.stop();
}
});
btnNewButton_1.setfont(new Font("American Typewriter",13));
btnNewButton_1.setbounds(363,43);
contentPane.add(btnNewButton_1);
JButton btnNewButton_3 = new JButton("CONTINUE");
btnNewButton_3.addactionListener(new actionListener() {
public void actionPerformed(actionEvent e) {
tm.restart();
}
});
btnNewButton_3.setfont(new Font("American Typewriter",13));
btnNewButton_3.setbounds(611,43);
contentPane.add(btnNewButton_3);
JLabel lblNewLabel = new JLabel("Bubble Sort Algorithm");
lblNewLabel.setfont(new Font("HanziPen TC",33));
lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
lblNewLabel.setbounds(148,37,511,74);
contentPane.add(lblNewLabel);
}
public void paint(Graphics g){
super.paint(g);
g.setColor(Color.PINK);
g.fillOval(x1,250,50,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[0]),y1,280);
g.setColor(Color.PINK);
g.fillOval(x2,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[1]),y2,280);
g.setColor(Color.PINK);
g.fillOval(x3,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[2]),y3,280);
g.setColor(Color.PINK);
g.fillOval(x4,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[3]),y4,280);
g.setColor(Color.PINK);
g.fillOval(x5,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[4]),y5,280);
g.setColor(Color.PINK);
g.fillOval(x6,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[5]),y6,280);
g.setColor(Color.PINK);
g.fillOval(x7,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[6]),y7,280);
g.setColor(Color.PINK);
g.fillOval(x8,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[7]),y8,280);
g.setColor(Color.PINK);
g.fillOval(x9,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[8]),y9,280);
g.setColor(Color.PINK);
g.fillOval(x10,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[9]),y10,280);
g.setColor(Color.PINK);
g.fillOval(x11,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[10]),y11,280);
g.setColor(Color.PINK);
g.fillOval(x12,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[11]),y12,280);
g.setColor(Color.PINK);
g.fillOval(x13,50);
g.setColor(Color.BLACK);
g.drawString(Integer.toString(arr[12]),y13,280);
}
public void swap(int[] arr,int A,int B) {
int temp = arr[A];
arr[A] = arr[B];
arr[B] = temp;
}
}
我想看动画的过程并看圆的平滑移动。