在 Java 中绘制未装饰的 JFrame 周围的边框
java 8object oriented programmingprogramming更新于 2025/8/20 15:40:17
首先，设置一个未装饰的框架 −
setUndecorated(true);
现在绘制边框 −
getRootPane().setBorder (.createMatteBorder(3, 3, 3, 3, Color.ORANGE));
以下是在未装饰的 JFrame 周围绘制边框的示例 −
示例
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class SwingDemo extends JFrame {
JLabel label = new JLabel("Welcome!", JLabel.CENTER);
public SwingDemo() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(new Dimension(500, 300));
add(label, BorderLayout.CENTER);
setUndecorated(true);
getRootPane().setBorder(
BorderFactory.createMatteBorder(3, 3, 3, 3, Color.ORANGE));
setVisible(true);
}
public static void main(String[] args) {
new SwingDemo();
}
}
输出
