Java/JSP/Super Sub Class
Using Superclass Variables With Subclassed Objects
<HTML>
<HEAD>
<TITLE>Using Superclass Variables With Subclassed Objects</TITLE>
</HEAD>
<BODY>
<H1>Using Superclass Variables With Subclassed Objects</H1>
<%!
javax.servlet.jsp.JspWriter localOut;
class vehicle
{
public void start() throws java.io.IOException
{
localOut.println("Starting...<BR>");
}
}
class aircraft extends vehicle
{
public void fly() throws java.io.IOException
{
localOut.println("Flying...<BR>");
}
}
class plane extends aircraft
{
public void fly() throws java.io.IOException
{
localOut.println("Flying...<BR>");
}
}
%>
<%
localOut = out;
out.println();
out.println("Creating a plane object...<BR>");
vehicle p = new plane();
p.start();
%>
</BODY>
</HTML>
