for (Constructor c : cons) 
{ 
   Class[] params = cc.getParameterTypes(); 
   System.out.print("Rectangle(");
   boolean first = true; 
   for (Class p : params) 
   { 
      if (first) first = false; else System.out.print(", "); 
      System.out.print(p.getName()); 
   } 
   System.out.println(")"); 
} 

Rectangle() 
Rectangle(java.awt.Rectangle) 
Rectangle(int, int, int, int) 
Rectangle(int, int) 
Rectangle(java.awt.Point, java.awt.Dimension) 
Rectangle(java.awt.Point) 
Rectangle(java.awt.Dimension)