1. class MyThread extends Thread {
2.   boolean active;
3.  
   
4.   CalsignThread() {
5.     active = false;
6.   }
7.  
   
8.   void start() {
9.     active = true;
10.     super.start();
11.   }
12.  
    
13.   void run () {
14.     while (true) {
15.       if(active) {
16.         execute();
17.       } else {
18.         break;
19.       }
20.     }
21.   }
22.  
    
23.   void execute() {
24.    
    
25.   }
26.  
    
27.   boolean isActive() {
28.       return active;
29.   }
30.  
    
31.   void quit() {
32.     active = false;
33.     interrupt();
34.   }
35. }

1. void setup() {//this will only run once automatically
     size(700, 250);//creates new figure/window sized in pixels
     smooth();//for apperearence's sake
   
     myPort = new Serial(this, "/dev/ttyS0", 9600);//declares the port and sets baud rate
     myPort.clear();//empty buffer to make sure start fresh not in middle
   
     start();//creating and running in parrallel void data... well it should be parallel at least
   }//END VOID SETUP

1. class MyThread extends Thread {
     boolean active;
   
     CalsignThread() {
       active = false;
     }
   
     void start() {
       active = true;
       super.start();
     }
   
     void run () {
       while (true) {
         if (active) {
           execute();
         }
         else {
           break;
         }
       }
     }
   
     void execute() {
       if (myPort.available()>0) {//cant do >1 for some reason breaks
         int num=myPort.available();//save so can see bit numbers
         println("rawr"+num);//print bit numbers
         String inBuffer=myPort.readStringUntil('\n');//collects the data
   
         if (inBuffer == null && num<=14) {
           char failure= myPort.readChar();
           myPort.clear();
           myPort.stop();
           myPort = new Serial(this, "/dev/ttyS0", 9600);
         }
         if (inBuffer != null) {//sends data to text label if new data
           if (num>14) {
             data=inBuffer;
             dataTypes= splitTokens(inBuffer, " ");//splits to spaces to deal with in chunks, 3rd = # of auth code
             myPort.clear();
           }
           else {
             data=inBuffer;
             myPort.clear();
           }
         }
       }
       text(data, 350, 200);//display data read
     }
   
     boolean isActive() {
       return active;
     }
   
     void quit() {
       active = false;
       interrupt();
     }
   }

When I try to compile I am getting an error for CalsignThread saying the return type is missing. Any ideas?

1.  myPort = new Serial(this, "/dev/ttyS0", 9600);

1. MyThread myThread;
   
   setup(){
         // create an instance of the MyThread-class and pass a reference to your main-PApplet
         myThread = new MyThreat(this);     
   
         // call the start()-method of that instance 
         myThread.start();      
   }

1. void setup() {//this will only run once automatically
2. 
     size(700, 250);//creates new figure/window sized in pixels
     smooth();//for apperearence's sake
3. 
   
4.   myPort = new Serial(this, "/dev/ttyS0", 9600);//declares the port and sets baud rate
     myPort.clear();//empty buffer to make sure start fresh not in middle
   
5. 
   
6.   // create an instance of the MyThread-class and pass a reference to your main-PApplet
     myThread = new MyThread(p);    
     // call the start()-method of that instance
   
7. 
   
8.   myThread.start();
   
9. 
   
10. }//END VOID SETUP

1. class MyThread extends Thread {
     boolean active;
   
     MyThread() {
       active = false;
     }
   
     void start() {
       active = true;
       super.start();
     }
   
     void run () {
       while (true) {
         if (active) {
           execute();
         }
         else {
           break;
         }
       }
     }
    
     MyThread(PApplet p) {
       parent = p;      // store the reference to PApplet and use it where you would use "this" in your main-program
   
       active = false;
   }
   
     void execute() {
       if (myPort.available()>0) {//cant do >1 for some reason breaks
         int num=myPort.available();//save so can see bit numbers
         println("rawr"+num);//print bit numbers
         String inBuffer=myPort.readStringUntil('\n');//collects the data
   
         //      if (inBuffer == null && num<=14) {
         //        char failure= myPort.readChar();
         //        myPort.clear();
         //        myPort.stop();
         //        myPort = new Serial(this, "/dev/ttyS0", 9600);
         //      }
        
         if (inBuffer != null) {//sends data to text label if new data
           if (num>14) {
             data=inBuffer;
             dataTypes= splitTokens(inBuffer, " ");//splits to spaces to deal with in chunks, 3rd = # of auth code
             myPort.clear();
           }
           else {
             data=inBuffer;
             myPort.clear();
           }
         }
       }
       text(data, 350, 200);//display data read
     }
   
     boolean isActive() {
       return active;
     }
   
     void quit() {
       active = false;
       interrupt();
     }
   }
   

1. /*File:SatelliteControl
    Date Started:06/20/2012
    Last Date of Revision: 07/12/2012
    Description: Basic GUI that receives text inputs and formats with a rotating
    authorization code to create a final command that is sent to a serial port
    also reads the data and puts on the GUI
    Note of Use: User must wait for the data to be pulled in and displayed fully
    before any command can be written else the authorization code will not match
    the full label includes KD4HBO if see this in data show may continue to write*/
   
   
   import processing.serial.*;//importing the library
   
   MyThread myThread;
   
   
   
   Serial myPort;//open object
   
   String inBuffer;//declare for use in void data
   
   String Commandt = "--------";//for drawing purposing first round
   String Additional = "---.- ";//^
   
   String command= "";//^
   
   void setup() {//this will only run once automatically
     size(700, 250);//creates new figure/window sized in pixels
     smooth();//for apperearence's sake
     myPort = new Serial(this, "/dev/ttyS0", 9600);//declares the port and sets baud rate
     myPort.clear();//empty buffer to make sure start fresh not in middle
     // create an instance of the MyThread-class and pass a reference to your main-PApplet
     myThread = new MyThread(this);    
     // call the start()-method of that instance
     myThread.start();
   }//END VOID SETUP
   
   String[] dataTypes= {//for first run through to have a auth code, although wrong
     "0", "0", "0", "0"
   };
   
   String data="--";//for first drawing purposes
   int i=0;//counter of button push used later to determine if need to use special method to clear buffer
   
   void draw() {//this will run after setup automatically and will loop unless commanded otherwise
   
     fill(#B3E0FF);//item fill
     stroke(225);//border
     background(400);//well duh
     textAlign(CENTER);
   
     rect(135, 45, 80, 25);//authorize box show
     rect(260, 45, 80, 25);//command box show
     rect(385, 45, 180, 25);//additional box show
   
     fill(#9AD4A2);
     text("Authorization Code", 175, 40);//labels
     text("Satellite Command", 300, 40);
     text("Additional Command Information", 475, 40);
   
     fill(0);//item fill(font color)
   
     try {
       text(Authourize[int(dataTypes[3])], 135, 50, 80, 25);//textboxes and choose the correct auth code
     }
     catch(ArrayIndexOutOfBoundsException e) {//catches if most sent but 3= number not in array
       dataTypes[3]="0";
     }
     catch(NullPointerException e) {//catches if not enough sent ie 3 DNE
       dataTypes[3]="0";
     }
   
     text(Commandt, 260, 50, 80, 25);//creating more boxes
     text(Additional, 435, 50, 80, 25);
   
   
     rect(213, 100, 80, 25);//write buttton
     rect(406, 100, 80, 25);//stop buttton
     fill(255);//button font color
     text("Write", 253, 117);//button labels
     text("Exit", 446, 117);
   
   
   
     //-------- KEYS
     if (keyPressed) {//deals with editing of text boxes
       if (key==BACKSPACE) {//backspace and delete not coded but shift is as well as control
         if (mouseX>=260 && mouseX<=350 && mouseY>=45 && mouseY<=70 && Commandt.length()>=1) {//hover over each text =able to change the text
           Commandt = Commandt.substring(0, Commandt.length()-1);
         }
         else if (mouseX>=385 && mouseX<=545 && mouseY>=45 && mouseY<=70 && Additional.length()>=1) {
           Additional = Additional.substring(0, Additional.length()-1);
         }
       }
       else if (key == DELETE) {
         if (mouseX>=260 && mouseX<=350 && mouseY>=45 && mouseY<=70) {
           Commandt = "";
         }
         else if (mouseX>=385 && mouseX<=545 && mouseY>=45 && mouseY<=70) {
           Additional = "";
         }
       }
       else if (keyCode != SHIFT && keyCode != CONTROL && keyCode != ALT) {
         if (mouseX>=260 && mouseX<=350 && mouseY>=45 && mouseY<=70) {
           Commandt = Commandt + key;
         }
         else if (mouseX>=385 && mouseX<=545 && mouseY>=45 && mouseY<=70) {
           Additional = Additional + key;
         }
       }
       delay(80);//so not typing million things at once inside if statement of keypressed
     }//END KEYPRESSED
   
   
     //MOUSE
     if (mousePressed) {
       if (mouseX>=213 && mouseX<=293 && mouseY>=100 && mouseY<=130) {//button pressing deals with mouse location
   
         String fauthourize=trim(Authourize[int(dataTypes[3])].substring(2, Authourize[int(dataTypes[3])].length()));//trims length and spaces
   
         Commandt= trim(Commandt).toUpperCase();//format texts uppercase and no lead/trail whitespace
         Additional= trim(Additional).toUpperCase();
   
         char go = 'y';//preset to send
   
         if (Commandt.equals("RESTART")) {//allows only exact commands to pass and be sent also helps format commands(additional)
           Additional="";//take out unnecesarry info
           go = 'y';
         }
         else if (Commandt.equals("SETTIME")) {
           go = 'y';
           Additional= " " + Additional;//add space back in for later send formatting
         }
         else if (Commandt.equals("GETSTATUS")) {
           go = 'y'; 
           Additional= "";//take out unneccessary info
         }
         else {//prevent corruption and sending improper commands
           Additional="";//gets rid of incorrect text
           Commandt="";    
           go ='n';//wont be able to change
         }
   
         String command = fauthourize + "!" + Commandt + Additional+'\n';//concatenate the command
   
         if (go == 'y') {//sends command if correct
           myPort.write(command);
           //myPort.clear();
           i++;//increase that button count yall ;P
         }
       }
       else if (mouseX>=406 && mouseX<=486 && mouseY>=100 && mouseY<=130) {//exit button
         // myPort.clear();
         myPort.stop();//close port so dont have to destroy then make lock file on next start up
         exit();//close everything!!!
       }
       delay(100);
     }//END MICKEY MOUSE
     text(data, 350, 200);//display data read
   }//END VOID DRAW
   
   
   class MyThread extends Thread {
     boolean active;
     PApplet p;
   
     MyThread() {
       active = false;
     }
   
     void start() {
       active = true;
       super.start();
     }
   
     void run () {
       while (true) {
         if (active) {
           execute();
         }
         else {
           break;
         }
       }
     }
   
     MyThread(PApplet p) {
       this.p = p;      // store the reference to PApplet and use it where you would use "this" in your main-program
   
       active = false;
     }
   
     void execute() {
       if (myPort.available()>0) {//cant do >1 for some reason breaks
         int num=myPort.available();//save so can see bit numbers
         println("rawr"+num);//print bit numbers
         String inBuffer=myPort.readStringUntil('\n');//collects the data
   
         if (inBuffer != null) {//sends data to text label if new data
           if (num>14) {
             data=inBuffer;
             dataTypes= splitTokens(inBuffer, " ");//splits to spaces to deal with in chunks, 3rd = # of auth code
             myPort.clear();
           }
           else {
             data=inBuffer;
             myPort.clear();
           }
         }
       }
   
       delay(200);
     }
   
     boolean isActive() {
       return active;
     }
   
     void quit() {
       active = false;
       interrupt();
     }
   }