[問題] paintpanel 一直無法出現
先說一下我是想要寫一個視覺動態的演算法
然後需要一個paintpanel 來印點,但是paintpanel卻一直沒辦法顯示
我在上方加上其他panel就可以，就只有paintpanel 無法QQ
我是拿以前寫過的拿來改一下就不行了
--------------以下程式碼------------
public class ALGHW extends JFrame{
private JPanel buttonpanel ,jPanel ; //JPanel
private JButton buttonsort;
private paintPanel paintpanel;
public ALGHW(){
super("FastQuick Sort");
jPanel = new JPanel();
jPanel.setBackground(Color.BLACK);
add(jPanel,BorderLayout.NORTH);
buttonpanel = new JPanel();
add(buttonpanel,BorderLayout.SOUTH);
paintpanel = new paintPanel();
add(paintpanel,BorderLayout.CENTER);
paintpanel.setBackground(Color.WHITE);
buttonsort = new JButton("FastQuick Sort");
buttonpanel.add(buttonsort);
};
public class paintPanel extends JPanel{
private static final long serialVersionUID = 1L;
private Point points[] = new Point[100000];
private int pointCount = 0;
public paintPanel(){
BufferedImage image = new
BufferedImage(500,500,BufferedImage.TYPE_INT_ARGB_PRE);
}
public void paintComponent(Graphics g){
super.paintComponents(g);
for(int i = 0 ; i < array.length ; i++){
g.fillOval(i, array[i], 1, 1);//g.fillOval(x, y, width, height)
}
}
};
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