android - ArrayList elements changed to last entry every time -

i have class such below . when run , should save x , y touched on screen positions making circles in circles arraylist every time touch . @ every time elements of array list have been last x,y ( elements changed last element) . should ?

package com.siamak.rain.ball;  import java.util.arraylist; import android.content.context; import android.graphics.canvas; import android.graphics.color; import android.graphics.paint; import android.graphics.paint.style; import android.util.attributeset; import android.view.motionevent; import android.widget.imageview;   public class balls extends imageview {      static arraylist<circle> circles = new arraylist<circle>();     static paint             cp;       public balls(context context, attributeset attrs, int defstyle) {         super(context, attrs, defstyle);         initial();     }       public balls(context context, attributeset attrs) {         super(context, attrs);         initial();     }       public balls(context context) {         super(context);         initial();     }       public static class circle {          static float x;         static float y;     }       public static void initial() {         cp = new paint();         cp.setcolor(color.green);         cp.setantialias(true);         cp.setstyle(style.stroke);         cp.setstrokewidth(5);      }       @override     public boolean ontouchevent(motionevent event) {         super.ontouchevent(event);         switch (event.getaction())         {             case (motionevent.action_down):                 circle c = new circle();                 c.x = event.getx();                 c.y = event.gety();                 circles.add(c);                 invalidate();                 break;          }         return true;     }       @override     protected void ondraw(canvas canvas) {         // todo auto-generated method stub         super.ondraw(canvas);         (circle c: circles)             canvas.drawcircle(c.x, c.y, 50, cp);     } }