import java.awt.*; import javax.swing.*;

public class EsSwing5 {
public static void main(String[] v){
JFrame f = new JFrame("Grafico f(x)");
Container c = f.getContentPane();
FunctionPanel p = new FunctionPanel();
c.add(p);
f.setBounds(100,100,500,400);
f.show();
}
}