Cannot find correct syntax for paint()

Question

Hi everyone,
I am supposed to create an applet that has a textfield component and a button comp. the user is prompted to type in a drawing command press the "go" button and the program executes. here is an exampls of what the text should read like..FD 50, turn SW, BK 50, colour red.
The FD is forward draw and the BK is backward. my problem is I am not using the correct syntax conventions when creating xnew and ynew coordinates. this might not be the best algorithm either, but with limited examples and resources it was the best I could come up with, any other suggestions would be much appreciated.
Here is the problem code.
public void init()
               extraPanel.setBackground (Color.blue);
               extraPanel.setLayout(new FlowLayout());//resizable panel
               extraPanel.setBackground(Color.red);
               extraPanel.add(button); button.addActionListener(this);
               extraPanel.add(Mylabel);
               Mylabel.setBackground(Color.white);
               extraPanel.add(tf);
               tf.setBackground(Color.green);
               add(extraPanel);
                //create a method to use the cursor to draw
                public void paint(Graphics page)
                   //declare the coordinates and variables
                   int x;
                   int y;
                   int xcurrent;
                   int ycurrent;
                   int xnew;
                   int ynew;
                   String turn;
                   boolean FD;
                   String sData = new String();
                   //create an array object of commands
                   //create a bufferedReader to read in data
                   BufferedReader stdin = new BufferedReader(new
                                          InputStreamReader(System.in));
                   //create an object of commands[]and set its size
                   comm = new Commands[20];                      
                   //create a String Tokenizer to read the data in from the tf
                   StringTokenizer tok = new StringTokenizer(sData, ",");
                   //read the data in
                   for(int i = 0; i < comm.length; i++)
                      sData = stdin.readLine();
                      comm[i] = new Commands(tok.nextToken(),Integer.parseInt(tok.nextToken()),
                                tok.nextToken(),Integer.parseInt(tok.nextToken()));
                      //use x and y coordinates to draw the image
                      xnew =  new (Commands(turn.x)* FD * dist + xcurrent + colour);
                      ynew =  new (Commands(turn.y)* FD * dist + ycurrent + colour);
                      repaint(xnew + ynew);
                      //set the focus on the new lines
                      xcurrent = xnew;
                      ycurrent = ynew;
}//end of logo 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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

Answer 1

Maybe I'm being dense but I don't see a question in here anywhere. Unless it the xnew ynew thing. You can't use new to create an int, an Integer object yes, but not int so get rid of the "new"s. Next look at the methods in http://java.sun.com/products/jdk/1.2/docs/api/java/awt/Graphics.html
And get rid of all of that BufferedReader stuff.
you applet should have something like:
TextField commands = new TextField("",20);
Button btn = new Button("Draw It");
String cmds = null;
// add the button and text field to the applet
// add an action listener for the button
// in the ActionPerformed method do somthing like
cmds = commands.getText();
repaint();
// in the paint method parse the cmds string and do the drawing via the Graphics class's methods
That you give a good idea of where to go now.