Syntax error How do you get the font metrics in Java Swing?

How do you get the font metrics in Java Swing?

To get the font metrics, use the FontMetrics class:

Graphics2D graphics = (Graphics2D) gp.create();
String str = getWidth() + "(Width) x (Height)" + getHeight();
FontMetrics m = graphics.getFontMetrics();

Now to display it:

int xValue = (getWidth() - m.stringWidth(str)) / 2;
int yValue = ((getHeight() - m.getHeight()) / 2) + m.getAscent();
graphics.drawString(str, xValue, yValue);

The following is an example to get the font metrics in Java Swing:

Example

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Color;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class SwingDemo {
   public static void main(String[] args) {
      JFrame frame = new JFrame("Font Metrics");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setLayout(new BorderLayout());
      frame.add(new Demo());
      frame.pack();
      frame.setVisible(true);
      System.out.println(frame.getSize());
   }
}
class Demo extends JPanel {
   @Override
   public Dimension getPreferredSize() {
      return new Dimension(500, 500);
   }
   @Override
   protected void paintComponent(Graphics gp) {
      super.paintComponent(gp);
      Graphics2D graphics = (Graphics2D) gp.create();
      String str = getWidth() + "(Width) x (Height)" + getHeight();
      FontMetrics m = graphics.getFontMetrics();
      int xValue = (getWidth() - m.stringWidth(str)) / 2;
      int yValue = ((getHeight() - m.getHeight()) / 2) + m.getAscent();
      graphics.drawString(str, xValue, yValue);
      graphics.dispose();
   }
}

Output

Updated on: 2019-07-30T22:30:26+05:30

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