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Using Inheritance

< HTML>     <HEAD>         <TITLE>Using Inheritance</TITLE>     </HEAD>     <BODY>         <H1>Using Inheritance</H1>         <%!             javax.servlet.jsp.JspWriter localOut;             class BaseClass             {                 public void start()  throws java.io.IOException                 {                     localOut.println("Starting...<BR>");                 }             }             class DerivedClass extends BaseClass             {                 public void drive() throws java.io.IOException                  {                     localOut.println("Deriving...<BR>");                 }             }         %>              <%             localOut = out;                  out.println("Creating an DerivedClass...<BR>");             DerivedClass a = new DerivedClass();             a.start();             a.drive();         %>     </BODY> </HTML>