java button 问题

复制内容到剪贴板代码:import javax.swing.*;
import java.awt.*;

public class ChessBoard{

private JFrame a;
private JPanel panel;
private ImageIcon i;
private ChessSquare[][] square = new ChessSquare[8][8];


public ChessBoard(){

a = new JFrame(); // Create a blank window
panel = new JPanel(); // Create a panel

square[1][1] = new ChessSquare();
panel.add(square[1][1]);

a.setContentPane(panel); // Use panel on Window
GridLayout layout = new GridLayout(8, 8,1,1);
panel.setLayout(layout);


a.setTitle("Wizard Chess"); // Change window title
a.setSize(300,300); // Change window size
a.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
a.setVisible(true); // Make it visible


}

}

复制内容到剪贴板代码:import javax.swing.*;
import java.awt.*;

public class ChessSquare
{
private JButton b;

public ChessSquare() {
b = new JButton("i am button");
}

public JButton getB(){
return b;
}

}

复制内容到剪贴板代码:ChessBoard.java:18: error: no suitable method found for add(ChessSquare)
panel.add(square[1][1]);
^
method Container.add(Component,Object,int) is not applicable
(actual and formal argument lists differ in length)
method Container.add(Component,Object) is not applicable
(actual and formal argument lists differ in length)
method Container.add(Component,int) is not applicable
(actual and formal argument lists differ in length)
method Container.add(String,Component) is not applicable
(actual and formal argument lists differ in length)
method Container.add(Component) is not applicable
(actual argument ChessSquare cannot be converted to Component by method in
vocation conversion)
method Component.add(PopupMenu) is not applicable
(actual argument ChessSquare cannot be converted to PopupMenu by method in
vocation conversion)
1 error

引用:原帖由 Susan﹏汪汪 於 9-3-2014 20:48 发表
汪汪唔识java

引用:原帖由 Susan﹏汪汪 於 9-3-2014 20:53 发表
ChessSquare系你的自定义class....JPanel当然不能add(ChessSquare)

引用:原帖由 peteraobo 於 2014-3-9 08:58 PM 发表

咁...我要系ChessSquare入面先add个button，之后再系Chessboard到引入番?

引用:原帖由 peteraobo 於 2014-3-9 09:04 PM 发表
继续等吧(泣)

复制内容到剪贴板代码:public class ChessSquare extends JButton
{
public ChessSquare() {
super("i am button");
}

}

复制内容到剪贴板代码: public Component add(Component comp)