<?page title="Auto Generated index.zul"?>
<window apply="id.web.zhilal.controller.Calculator"
 title="Simple Calculator" border="normal" mode="overlapped">
 <vbox>
  <textbox id="textInput" value="" focus="true" ></textbox>
  <hbox>
   <vbox>
    <hbox>
     <button width="35px" id="btnBackSpace" label="<"></button>
     <button width="35px" id="btnCE" label="CE"></button>
     <button width="35px" id="btnC" label="C"></button>
    </hbox>     
    <hbox>      
     <button width="35px" id="btn1" label="1"></button>
     <button width="35px" id="btn2" label="2"></button>
     <button width="35px" id="btn3" label="3"></button>
    </hbox>     
    <hbox>      
     <button width="35px" id="btn4" label="4"></button>
     <button width="35px" id="btn5" label="5"></button>
     <button width="35px" id="btn6" label="6"></button>
    </hbox>     
    <hbox>      
     <button width="35px" id="btn7" label="7"></button>
     <button width="35px" id="btn8" label="8"></button>
     <button width="35px" id="btn9" label="9"></button>
    </hbox>     
    <hbox>      
     <button width="115px" id="btn0" label="0"></button>
    </hbox>
   </vbox>
   <vbox>
    <button width="35px" height="115px" id="submit" label="="></button>
   </vbox>
  </hbox>
 </vbox>
</window>

Add a code snippet to your website: www.paste.org