如何在 Java 中为单个组件创建两个边框?
要为一个组件创建两个边框,请使用 Java 中的 createCompoundBorder() 方法。在此,我们创建了 LineBorder 和 TitledBorder −
LineBorder lineBorder = new LineBorder(Color.red); TitledBorder titleBorder = new TitledBorder("Demo Title"); Border border = BorderFactory.createCompoundBorder(lineBorder, titleBorder);
现在,为单个组件设置这两个边框 −
JButton button = new JButton("two borders"); button.setBorder(border);
以下是一个为单个组件创建两个边框的示例 −
示例
package my; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; 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("two borders"); button.setBorder(border); Container contentPane = frame.getContentPane(); contentPane.add(raisedButton,BorderLayout.WEST); contentPane.add(button,BorderLayout.EAST); frame.setSize(600, 300); frame.setVisible(true); } }
输出
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