I know there have been some threads regarding the subject, but couldn't quite find what I'm looking for.

I want to be able to do something when certain keys and key combination are pressed. Like, if A is pressed, do A(), if B is pressed do B(), and if both are pressed, do AB().
The problem is that whenever a second key is pressed, the first one becomes false, although I'm still pressing it. It's the same with "key" and "keyCode". I guess I need some kind of sniffer that doesn't get fooled by a second keypress ...

I looked here ( http://java.sun.com/j2se/1.3/docs/api/java/awt/event/KeyEvent.html )  but couldn't find what I need.

Any ideas ?

Yup, it was what I wanted. So, for the sake of sharing, here's what I did with it. I wan to control something with two sets of sensors on the floor. The problem was that somebody could step on two adjacent "keys" (the sensors are actually a keyboard board rewired) or step on a key and tap the other etc.

Anyway, here is my solution. You'll notice that almost everything is in pairs, that's because I have 2 sets of sensors.

Code:

String stringP1 = "1234567890-=";
String stringP2 = "qwertyuiop[]";
PFont font;
String st;
int[] keysPressed1 = new int[13];
int[] keysPressed2 = new int[13];
int num;

void setup(){
size(640,480,P3D);
background(255);
fill(0);
}



void draw(){
  int temp1=0,  temp2=0, tempNum=0;
  background(255);
  for (int i=0;i<stringP1.length();i++) {
	  if (keysPressed1[i] != 0){
		    temp1 += keysPressed1[i];
		    tempNum++;
	  }
  }
  if (tempNum>0) temp1 = temp1 / tempNum;
  
  tempNum=0;
  for (int i=0;i<stringP2.length();i++) {
	  if (keysPressed2[i] != 0){
		    temp2 +=keysPressed2[i];
		    tempNum++;
	  }
  }
  if (tempNum>0) temp2 = temp2 / tempNum;  
  
   rect(temp2,  height-10,    110,	10);  
   rect(temp1,  0,    110,	10);  
}



void keyPressed() {
  num = stringP1.indexOf(key);
  st = str(key);
  if (num >= 0) keysPressed1[num] = getValue(stringP1, st, 1, 540);
  
  num = stringP2.indexOf(key);
  st = str(key);
  if (num >= 0) keysPressed2[num] = getValue(stringP2, st, 1, 540);
}


void keyReleased() {
  num = stringP1.indexOf(key);
  if (num >= 0) keysPressed1[num] = 0;

  num = stringP2.indexOf(key);
  if (num >= 0) keysPressed2[num] = 0;

}


void mousePressed(){
}



int getValue(String myString, String myKey, int mapMin, int mapMax){
float pos = myString.indexOf(myKey);
float maxPos = myString.length()-1;
return round(	   mapMin+(pos/maxPos)*(mapMax-mapMin)	 );
}