这是我的代码: 出于某种原因,我的屏幕上不会出现任何内容,但我不知道为什么,我相信我正确地初始化并添加它。救命?
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class main implements MouseListener{
final int WIDTH = 800, HEIGHT = 500, BOARD_WIDTH = 10, BOARD_HEIGHT = 10;
private JButton [][]buttons = new JButton[BOARD_WIDTH][BOARD_HEIGHT];
public static void main(String[] args) {
// TODO Auto-generated method stub
new main();
}
public main()
{
Start();
}
private void Start()
{
JFrame mainFrame = new JFrame("MineSweeper");
mainFrame.setVisible(true);
mainFrame.setSize(WIDTH,HEIGHT);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setLocationRelativeTo(null);
mainFrame.setResizable(false);
mainFrame.setLayout(new BorderLayout());
JPanel p1 = new JPanel();
p1.setLayout(new GridLayout(BOARD_WIDTH, BOARD_HEIGHT));
for(int x = 0; x < BOARD_WIDTH; x++)
for(int y = 0; y < BOARD_HEIGHT; y++)
{
buttons[x][y] = new JButton("01");
buttons[x][y].addMouseListener(this);
p1.add(buttons[x][y]);
}
mainFrame.add(p1, BorderLayout.CENTER);
}
@Override
public void mouseClicked(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseEntered(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent arg0) {
// TODO Auto-generated method stub
}
}
感谢您的帮助! 也很抱歉任何混乱,我的按钮不会出现在屏幕上,而不会出现框架。
答案 0 :(得分:1)
最后致电mainFrame.setVisible(true);
private void Start()
{
JFrame mainFrame = new JFrame("MineSweeper");
// Move this...
//mainFrame.setVisible(true);
//...
mainFrame.add(p1, BorderLayout.CENTER);
// To here
mainFrame.setVisible(true);
}
您还应该使用EDT的上下文启动您的应用程序。请查看Initial Threads了解更多详情
您还应该避免使用MouseListener
按钮,它们有ActionListener
API,其中包含用户点击按钮或“有效”键时的通知(通常 Enter 或空间)