Aligning of EditField

Question

i have created one lable and RoundedEditField.but i am not able to make that RoundedEditField under the lable in blackberry with spcific margin. How to do that.. hear is Code

enter code here
 public class MyClass extends MainScreen implements FieldChangeListener { 


 ButtonField next; 
  Bitmap bit; 
  //String emp_id,emp_name,salary; 

      public MyClass() 
     { 
    bit=Bitmap.getBitmapResource("PlainScreen.png"); 
    VerticalFieldManager v_mgr=new VerticalFieldManager() 
    //HorizontalFieldManager h_mgr = new HorizontalFieldManager()
       { 
       protected void paint(Graphics graphics) 
       { 
       graphics.drawBitmap(0, 0, Display.getWidth(),Display.getHeight(), bit, 0, 0); 
       super.paint(graphics); 
       } 
        protected void sublayout(int maxWidth, int maxHeight) //It fit the image to                  device width and height. 
      { 
      super.sublayout(Display.getWidth(),Display.getHeight()); 
       setExtent(Display.getWidth(),Display.getHeight()); 
     } 
     }; 


      HorizontalFieldManager hSecond = new HorizontalFieldManager(USE_ALL_WIDTH); 
      /*BasicEditField roundedBorderEdit = new BasicEditField();
      XYEdges padding = new XYEdges(15, 15, 15, 15);
      int color = Color.WHITE;
      int lineStyle = Border.STYLE_FILLED;
      Border roundedBorder = BorderFactory.createRoundedBorder(padding, 
           color, lineStyle);
      roundedBorderEdit.setBorder(roundedBorder);
      */
     LabelField lbl= new LabelField("LastName:", LabelField.FIELD_HCENTER |  LabelField.NON_FOCUSABLE ){
     protected void paint(Graphics g)
     {
         Font font1 = getFont();
         g.setColor(Color.WHITE);
         super.paint(g);
     }};

      BasicEditField lblName = new BasicEditField(" ","",50,BasicEditField.FIELD_HCENTER) 
     { 

      protected void paint(Graphics graphics) 
    { 
        Font font= getFont();
        graphics.drawRoundRect(0, 0, 240, font.getHeight(), 30, 30);
        graphics.setColor(Color.BLACK);
        super.paint(graphics);
       graphics.setColor(Color.WHITE); 
       super.paint(graphics); 
      } 
      }; 
        hSecond.add(lbl);
        hSecond.add(lblName);
        hSecond.setMargin(0, 0, 0, 50);
        hSecond.setPadding(5, 30, 20, 0);
        v_mgr.add(hSecond); 
        //v_mgr.setPadding(0, 0, 0, 10);
        HorizontalFieldManager hThird = new HorizontalFieldManager(USE_ALL_WIDTH);
        LabelField lbl1= new LabelField("Number:",LabelField.FIELD_HCENTER |     LabelField.NON_FOCUSABLE){
            protected void paint(Graphics g)
            {
             Font font = getFont();
             g.setColor(Color.WHITE);
             super.paint(g);
            }};
       BasicEditField lblName1 = new BasicEditField("      ","",50,BasicEditField.FIELD_HCENTER) 
     { 
        protected void paint(Graphics graphics) { 
              Font font1= getFont();
              graphics.drawRoundRect(0, 0, 240, font1.getHeight(), 30, 30);
              graphics.setColor(Color.BLACK);
              super.paint(graphics);
        graphics.setColor(Color.WHITE); 
         super.paint(graphics); 
        } 
      }; 
      //lblEmail.setFont(StaticVariables.font2);
      hThird.add(lbl1);
      hThird.add(lblName1); 
      hThird.setMargin(0, 0, 0, 50);
      //PasswordEditField txtEmail = new PasswordEditField(); 
        //hThird.add(txtEmail); 
       hThird.setPadding(5, 30, 20, 0); 
      v_mgr.add(hThird); 
      //v_mgr.setPadding(0, 0, 0, 10);
    add(v_mgr); 
       } 
         public void fieldChanged(Field field, int context) 
         { 
         // TODO Auto-generated method stub 
         }
    }