Empty space FlowLayout

In the program to the end, I get a window and empty space in the upper window frame and number in the box above. Is someone can you please help me get rid of this empty space? In other words, how can I move the highest number a bit?
import java.awt.*;
import javax.swing.*; 

public class ShowTime extends JFrame
{
    public static void main(String[] arguments) {
        ShowTime frame = new ShowTime();
        frame.pack();
        frame.setVisible(true);
    }

    JLabel lTime;
    public ShowTime() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        JPanel pane = new JPanel();
        pane.setLayout(new FlowLayout());
        
        lTime = new JLabel("88:88");
        lTime.setFont(new Font ("Helvetica", Font.PLAIN, 88));
        pane.add(lTime);
        setContentPane(pane);
    }
}

The space belongs to the default size of the label. I'm not why there is so much space above the text. You can see this by adding a border to the label:

lTime.setBorder( new javax.swing.border.LineBorder(Color.RED) );

If you really want to get rid of the extra space, you can manipulate the default with something like:

lTime.setFont(new Font ("Helvetica", Font.PLAIN, 88));
FontMetrics fm = lTime.getFontMetrics( lTime.getFont() );
TextLayout layout = new TextLayout(lTime.getText(), lTime.getFont(), fm.getFontRenderContext());
Rectangle2D bounds = layout.getBounds();
Dimension d = lTime.getPreferredSize();
d.height = (int)(bounds.getHeight() + 1);
lTime.setPreferredSize( d );

Tags: Java

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