Overriding Methods in derived class : Class in JSP Page « JSP « Java Tutorial






<HTML>
    <HEAD>
        <TITLE>Overriding Methods in derived class</TITLE>
    </HEAD>

    <BODY>
        <H1>Overriding Methods</H1>

        <%!
            javax.servlet.jsp.JspWriter localOut;

            class BaseClass
            {
                public void print()  throws java.io.IOException 
                {
                    localOut.println("print in base...<BR>");
                }
            }

            class DerivedClass extends BaseClass
            {
                public void print()  throws java.io.IOException 
                {
                    localOut.println("print in Derived class...<BR>");
                }
            }
        %>     
        <%
            localOut = out;     

            out.println("Creating an animal object...<BR>");
            BaseClass a = new BaseClass();
            a.print();

            out.println();
            out.println("Creating a trout object...<BR>");
            DerivedClass t = new DerivedClass();
            t.print();
        %>
    </BODY>
</HTML>








23.14.Class in JSP Page
23.14.1.Using Inheritance
23.14.2.Using Restricted Access
23.14.3.Calling Superclass Constructors
23.14.4.Using Parameterized Constructors
23.14.5.Working With Constructors and Inheritance
23.14.6.Overloading Methods
23.14.7.Overriding Methods in derived class
23.14.8.Using Superclass Variables With Subclassed Objects
23.14.9.Runtime Polymorphism
23.14.10.Using Abstract Classes
23.14.11.Creating a Java Interface