AbstractButton.addActionListener(ActionListener l) has the following syntax.
public void addActionListener(ActionListener l)
In the following code shows how to use AbstractButton.addActionListener(ActionListener l) method.
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; //from w ww .ja va 2 s . c om import javax.swing.AbstractButton; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JFrame; public class Main { public static void main(String[] args) { AbstractButton jb = new JButton("Press Me"); jb.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { System.out.println(((JComponent) arg0.getSource()) .getFont()); } }); JFrame f = new JFrame(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.getContentPane().add(jb); f.pack(); f.setVisible(true); } }