Search:

In the loop?

Okay, I changed it a bit and got the applet to start but now it returns a value of 0.0 when I type in the digits for radius and height.


import java.awt.Container;
import javax.swing.JApplet;...

I'm sorry about that. The variables radius and height does not work, here are the errors from the console:

java.lang.NullPointerException
at sun.misc.FloatingDecimal.readJavaFormatString(Unknown...

Hi, why doesn't this work?


import java.awt.Container;
import javax.swing.JApplet;
import javax.swing.JOptionPane;
import javax.swing.JTextArea;

public class CylinderApplet extends JApplet {