I would say “yes”…
- Download the zip package from Font Awesome
- Uncompress it
- Copy the
fontawesome-webfont.ttf
file to your project (in the below example, I used it as an embedded resource) - Using the Cheeatsheet, copy and past the icon you want to use into your code
- Load the font and display…
For example…
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.FontFormatException;
import java.awt.GridBagLayout;
import java.io.IOException;
import java.io.InputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class TestFontAwsome {
public static void main(String[] args) {
new TestFontAwsome();
}
public TestFontAwsome() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
try (InputStream is = TestFontAwsome.class.getResourceAsStream("/fontawesome-webfont.ttf")) {
Font font = Font.createFont(Font.TRUETYPE_FONT, is);
font = font.deriveFont(Font.PLAIN, 24f);
JLabel label = new JLabel("?");
label.setFont(font);
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new GridBagLayout());
frame.add(label);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
} catch (IOException | FontFormatException exp) {
exp.printStackTrace();
}
}
});
}
}
You can also use the unicode directly, for example, the symbol in the above example is listed as 
which could be used as…
JLabel label = new JLabel("\uf0c0");