List all the Parameter names and values | OAF Page

import java.util.Enumeration; 

Enumeration enums = pageContext.getParameterNames(); 

 while(enums.hasMoreElements())

{ 

   String paramName = enums.nextElement().toString(); 

   System.out.println("Param name:-->" +paramName+ ";Value:-->"+pageContext.getParameter(paramName)); 

 }