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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