如何在 Java Swing 中使用 EmptyBorder 留出空白区域


我们首先创建一个 JPanel 并设置标题边框

JPanel panel = new JPanel();
panel.setBorder(BorderFactory.createTitledBorder("Demo Panel"));

现在创建 Empty Border

JPanel panel2 = new JPanel(new BorderLayout());
panel2.add(panel, BorderLayout.CENTER);
panel2.setBorder(BorderFactory.createEmptyBorder(100, 100, 100, 100));

以下是如何在 Java Swing 中使用 EmptyBorder 留出空白区域的示例

示例

import java.awt.BorderLayout;
import java.awt.Dimension;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class SwingDemo {
   public static void main(String[] args) {
      JPanel panel = new JPanel();
      panel.setBorder(BorderFactory.createTitledBorder("Demo Panel"));
      JPanel panel2 = new JPanel(new BorderLayout());
      panel2.add(panel, BorderLayout.CENTER);
      panel2.setBorder(BorderFactory.createEmptyBorder(100, 100, 100, 100));
      panel2.setPreferredSize(new Dimension(700, 350));
      JFrame frame = new JFrame("Set Space");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setContentPane(panel2);
      frame.pack();
      frame.setLocationByPlatform(true);
      frame.setVisible(true);
   }
}

输出

更新于: 2019-07-30

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