如何在框架Swing中居中標簽？-有解無憂

我想在框架中心的下圖中制作著作權。我試圖添加SwingConstants.CENTER，Component.CENTER_ALIGNMENT但都沒有奏效。有人可以幫我解決這個問題嗎？提前致謝。

如何在框架 Swing 中居中標簽？

import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;

public class Main {
    public static void main(String[] args) {
        new Main();
    }

    public Main() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                JFrame frame = new JFrame();
                frame.add(new TestPane());
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

    public class TestPane extends JPanel {

        public TestPane() {
            setBorder(new EmptyBorder(32, 32, 32, 32));
            setLayout(new GridBagLayout());
            GridBagConstraints gbc = new GridBagConstraints();
            gbc.gridx = 0;
            gbc.gridy = 0;
            gbc.anchor = gbc.LINE_END;
            gbc.insets = new Insets(0, 8, 0, 8);

            add(new JLabel("enter a text:"), gbc);
            gbc.gridy  ;
            add(new JLabel("result:"), gbc);

            gbc.gridx = 1;
            gbc.gridy = 0;
            gbc.anchor = gbc.LINE_START;
            add(new JTextField(10), gbc);
            gbc.gridy  ;
            add(new JTextField(10), gbc);

            JPanel actionPane = new JPanel(new GridBagLayout());
            gbc.gridx = 0;
            gbc.gridy = 0;
            gbc.weightx = 1;
            gbc.fill = gbc.HORIZONTAL;
            gbc.insets = new Insets(0, 0, 0, 0);

            actionPane.add(new JButton("encyprt!"), gbc);
            gbc.gridx  ;
            actionPane.add(new JButton("decyprt!"), gbc);

            gbc = new GridBagConstraints();
            gbc.gridwidth = gbc.REMAINDER;
            gbc.gridy = 2;

            add(actionPane, gbc);
            gbc.gridy  ;
            add(new JLabel("? Project realized by Ayoub Touti"), gbc);
        }
    }
}

有關詳細資訊，請參閱如何使用 GridBagLayout

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