如何在 Java 中为组件创建一个复合边框?
复合边框由两个或两个以上边框组成,即边框周围的边框。我们可以使用 createCompoundBorder() 方法在 Java 中为其创建边框。
假设以下是我们组件 −
JLabel label; label = new JLabel("This has compound border (border around a border)!");
现在,设置复合边框 −
label.setBorder(BorderFactory.createCompoundBorder(BorderFactory .createRaisedBevelBorder(), BorderFactory.createLoweredBevelBorder()));
以下是为组件创建复合边框的示例 −
示例
package my; import javax.swing.BorderFactory; import java.awt.Font; import javax.swing.JFrame; import javax.swing.JLabel; public class SwingDemo { public static void main(String[] args) throws Exception { JFrame frame = new JFrame("Demo"); JLabel label; label = new JLabel("This has compound border (border around a border)!"); label.setFont(new Font("Arial", Font.BOLD, 18)); label.setVerticalAlignment(JLabel.CENTER); label.setBorder(BorderFactory.createCompoundBorder(BorderFactory .createRaisedBevelBorder(), BorderFactory.createLoweredBevelBorder())); frame.add(label); frame.setSize(550,350); frame.setVisible(true); } }
输出
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