Help - Button Events - exiting out of while loops... HELP !

[bioflare]

I'm writing a little code for a game, and im using a few while loops to control an incrementing number, the number slowly increases getting faster and faster. Now that i have that part done. I want to be able to start the with a button click and stop it at any point in time. But i am failing at doing this.

code:

//import java packages for applet, and event import java.applet.*; import java.awt.*; import java.awt.event.*; //class InputNamesFrame Frame public class AnglePowerMeter extends Frame implements ActionListener {     private int click;     //declare new borderlayout for the layout of the whole screen     BorderLayout layout = new BorderLayout ();     //declare panels for the borderlayout     Panel center = new Panel ();     Panel top = new Panel ();     Panel left = new Panel ();     Panel right = new Panel ();     Panel bottom = new Panel ();     Panel middle = new Panel ();     //initialize labels to prompt users for input of names     Label question = new Label ("Get Ready to choose your Power and Angle!", Label.CENTER);     Label getAngle = new Label ("Angle", Label.LEFT);     Label getPower = new Label ("Power", Label.LEFT);     //new textfields for input of names     TextField pAngle = new TextField (2);     TextField pPower = new TextField (2);     //buttons to continue and play, or reset all textfields, or cancel and go back to main menu     Button startAngle = new Button ("Angle Start");     Button startPower = new Button ("Power Start");     Button cancel = new Button ("Cancel");     //declare objects used in this object >.>     //MeterEngine meter = new MeterEngine ();     //double value of the angle to int value to string     // String angle = Math.round (exp) + "";     //constructor method     AnglePowerMeter (String title)     {         super (title);         resize (300, 150);         setLayout (layout);         top.setLayout (new FlowLayout ());         top.add (question);         add ("North", top);         center.setLayout (new FlowLayout ());         center.add (middle);         add ("Center", center);         middle.setLayout (new FlowLayout ());         middle.add ("West", getAngle);         getAngle.setBackground (Color.white);         middle.add ("West", pAngle);         pAngle.setEditable (false);         middle.add ("East", getPower);         getPower.setBackground (Color.white);         middle.add ("East", pPower);         pPower.setEditable (false);         left.setLayout (new FlowLayout ());         add ("West", left);         right.setLayout (new FlowLayout ());         add ("East", right);         bottom.setLayout (new FlowLayout ());         bottom.add (startAngle);         //    startAngle.setMnemonic (KeyEvent.VK_A); //alt a shortcut         startAngle.addActionListener (this);         bottom.add (startPower);         bottom.add (cancel);         add ("South", bottom);     }     public void paint (Graphics g)     {         setBackground (Color.black);     }     public void actionPerformed (ActionEvent e)     {         Object source = e.getSource ();         if (source == startAngle)         {             double c = 1.8, i = 1, max = 90, exp = 0;             final double inc = 0.000355; //speed at while it increases             boolean f = false, g = false;                         while (true)// #1             {                 while (f == false) //increasing speed going up to 90                 {                     exp = Math.pow (c, i);                     i += inc;                     pAngle.setText (Math.round (exp) + "");                     if (exp > max)                     {                         f = true;                         g = false;                     } //end if                 } //end while                 while (g == false) //decreasing speed going down from 90                 {                     exp = Math.pow (c, i);                     i -= inc;                     pAngle.setText (Math.round (exp) + "");                     if (exp < 1)                     {                         g = true;                         f = false;                     } //end if                 } //end while             } //end while             //end while             click++;         }         else if (source == startPower)         {             double c = 1.8, i = 1, exp = 0, max = 1000;             final double inc = 0.000543; //speed at which it increases             boolean f = false, g = false;             while (true)//#2             {                 while (f == false)                 {                     exp = Math.pow (c, i);                     pPower.setText (Math.round (exp) + "");                     i += inc;                     if (exp > max)                     {                         f = true;                         g = false;                     } //end if                 } //end while                 while (g == false)                 {                     exp = Math.pow (c, i);                     pPower.setText (Math.round (exp) + "");                     i -= inc;                     if (exp < 1)                     {                         g = true;                         f = false;                     } //end if                 } //end while             } //end while         }         else if (source == cancel)         {             pAngle.setText ("");             pPower.setText ("");             dispose ();         }     } }

At #1 and #2 are the increasing part and decreasing parts. I use the same type of loop for Increasing the angle and power. I want it so that when i click a button it starts, and when i click that button again it stops. Right now all it does is stay in the loop. Any suggestions?

[Aziz]

Java n00b here, but I've been reading my Ready to Program textbook my teacher let my borrow and if I'm not mistaken you could just use a

code:

break;

expression.

[wtd]

Aziz wrote:

Java n00b here, but I've been reading my Ready to Program textbook my teacher let my borrow and if I'm not mistaken you could just use a

code:

break;

expression.

Yes.