我们可以使用 Java Swing 更改光标吗?

java 8object oriented programmingprogrammingswing

是的,我们可以更改 Java 中的默认光标表示。让我们首先创建一个按钮组件 −

JButton button = new JButton("Button with two borders");

每当用户将鼠标光标停留在上述按钮组件上时,光标就会变为手形光标 −

Cursor cursor = button.getCursor();
button.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));

以下是更改光标的示例 −

示例

package my;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Cursor;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;
import javax.swing.border.LineBorder;
import javax.swing.border.TitledBorder;
public class SwingDemo {
   public static void main(String args[]) {
      JFrame frame = new JFrame("Demo");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      Border raisedBorder = new EtchedBorder(EtchedBorder.RAISED);
      LineBorder lineBorder = new LineBorder(Color.red);
      TitledBorder titleBorder = new TitledBorder("Demo Title");
      Border border = BorderFactory.createCompoundBorder(lineBorder, titleBorder);
      JButton raisedButton = new JButton("Raised Border");
      raisedButton.setBorder(raisedBorder);
      JButton button = new JButton("Button with two borders");
      button.setBorder(border);
      Cursor cursor = button.getCursor();
      button.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
      Container contentPane = frame.getContentPane();
      contentPane.add(raisedButton,BorderLayout.WEST);
      contentPane.add(button,BorderLayout.EAST);
      frame.setSize(600, 300);
      frame.setVisible(true);
   }
}

输出

输出如下。当你将光标放在带有两个边框的按钮上时,手形光标将可见,如下所示 −


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