missing »Circle«

Doc/Sd1/inheritance.xml

@@ -170,7 +170,7 @@ double height;</programlisting></td>
   private double height;
 }</programlisting></td>
 
-        <td colspan="2" valign="top"><programlisting language="java">public class extends Shape {
+        <td colspan="2" valign="top"><programlisting language="java">public class Circle extends Shape {     
   private double radius;
 }</programlisting></td>
       </tr>