game.input.onDown.add(function() {
    x = Math.floor(game.input.activePointer.worldX / 15);
    y = Math.floor(game.input.activePointer.worldY / 15);
    arrayData.push("{'x':'" + x+"','Y':'"+y+"'}");
    document.getElementById('test').innerHTML = ' Data: {"x":' + x+',"Y":'+y+'}';
    console.log(" Data: " + arrayData);
});

arrayData.push("{'x':'" + x+"','Y':'"+y+"'}");

arrayData.push({'x': x,'Y': y});

var obj = {
    'x': Math.floor(game.input.activePointer.worldX / 15),
    'y': Math.floor(game.input.activePointer.worldY / 15)
};
arrayData.push(obj);

$.ajax({
      type: 'POST',
      url: "CollectData.jsp",
      data: {xydata:arrayData},
      dataType: "json",
      success: function(resultData) {
          alert("here");
          console.log("New Data :"+resultData);
      //$("#list").html(resultData);
      }
});

String data =request.getParameter("xydata");
JSONObject obj = new JSONObject();
obj.put("arr", data);

try {
FileWriter file = new FileWriter("D:\test\testFile.json");
file.write(obj.toJSONString());
file.flush();
file.close();
} catch (IOException e) {
e.printStackTrace();}