Java Swing - 如何在JScrollPane中創(chuàng)建用Buttons填充的JPanel
我們想知道如何在JScrollPane中創(chuàng)建用Buttons填充的JPanel。
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
public class Main {
public static void main(String[] args) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
int x = 5;
int y = 5;
JPanel panel = new JPanel();
panel.setLayout(new GridLayout(x, y));
for (int i = 0; i < x * y; i++) {
JButton button = new JButton(String.valueOf(i));
button.setPreferredSize(new Dimension(100, 100));
panel.add(button);
}
JPanel container = new JPanel(new FlowLayout(FlowLayout.CENTER, 0, 0));
container.add(panel);
JScrollPane scrollPane = new JScrollPane(container);
f.getContentPane().add(scrollPane);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
}
【jscrollpane】
