Touch JoyStick problem - JavaScript!!

It is multitouch, so you needed to use Touch.fingerId of your touches.

can you give me an example script in java ?

I cant say that it 100% works, but I wonder that can help you at your research. Im using also Input.GetTouch

 public var touchNumber : int;
 
 function Update () {
 
     for (var i = 0; i < Input.touchCount; i++){
         var ray = Camera.main.ScreenPointToRay (Input.GetTouch(i).position);
         if (Physics.Raycast (ray, hit, 10)){
             if (hit.collider.tag == "Joystick"){
                 touchNumber = i;
         }
     }
     var ray2 = Camera.main.ScreenPointToRay (Input.GetTouch(touchNumber).position);
     if (Input.touchCount > 0 && 
           Input.GetTouch(touchNumber).phase == TouchPhase.Moved && Physics.Raycast (ray2, hit, 10)){ 
         //do something
     }
     else if (Input.GetTouch(touchNumber).phase == TouchPhase.Canceled || Input.GetTouch(touchNumber).phase == TouchPhase.Ended) {
         touchNumber = -1;
         //do something
     }}

Thank you very much ..... i change the script but you give me the start idea ....this is my script ..

 for (var i = 0; i < Input.touchCount; i++){
        
                           touchNumber = i;
          
        
      if (Input.touchCount > 0 && 
            Input.GetTouch(touchNumber).phase == TouchPhase.Moved ){ 
            if( Input.GetTouch(i).position.x>-230&&Input.GetTouch(i).position.x<310){
            JoyStickImage.transform.position.x = Input.GetTouch(i).position.x;
           JoyStickImage.transform.position.y = Input.GetTouch(i).position.y;
           
      }}
       if (Input.GetTouch(touchNumber).phase == TouchPhase.Canceled || Input.GetTouch(touchNumber).phase == TouchPhase.Ended) {
          touchNumber = -1;
           JoyStickImage.transform.position.x = 0;
            JoyStickImage.transform.position.y = 0;
      }}