Java 程序用于创建指向北方的箭头按钮

要创建指向北方的箭头按钮，请使用 BasicArrowButton

BasicArrowButton arrow = new BasicArrowButton(BasicArrowButton.NORTH);

在上面，我们将箭头设置为 NORTH。现在将它添加到 Panel

panel.add(arrow, BorderLayout.NORTH);

以下是创建指向北方的箭头按钮的示例

示例

import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.plaf.basic.BasicArrowButton;
public class SwingDemo extends JPanel {
   public SwingDemo() {
      setLayout(new BorderLayout());
      JPanel panel = new JPanel(new BorderLayout());
      add(panel, BorderLayout.EAST);
      BasicArrowButton arrow = new BasicArrowButton(BasicArrowButton.NORTH);
      panel.add(arrow, BorderLayout.NORTH);
   }
   public static void main(String[] args) {
      JFrame frame = new JFrame("Frame with arrow");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.add(new SwingDemo());
      frame.setSize(600, 500);
      frame.setLocationByPlatform(true);
      frame.setVisible(true);
   }
}

结果如下，显示指向 NORTH 的箭头按钮