ComponentEvent.paramString() has the following syntax.
public String paramString()
In the following code shows how to use ComponentEvent.paramString() method.
/* ww w .j a va2s . c o m*/ import java.awt.event.ComponentEvent; import java.awt.event.ComponentListener; import javax.swing.JFrame; public class Main implements ComponentListener { @Override public void componentShown(ComponentEvent evt) { System.out.println(evt.paramString()); } @Override public void componentResized(ComponentEvent e) { } @Override public void componentMoved(ComponentEvent e) { } @Override public void componentHidden(ComponentEvent e) { } public static void main(String[] args) { JFrame frame = new JFrame(""); frame.pack(); frame.addComponentListener(new Main()); frame.setVisible(true); } }