Shared Request Counter 2

package cs320.servlet; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; public class SharedRequestCounter2 extends HttpServlet { private static final long serialVersionUID = 1L; public void init() throws ServletException { // store one counter in the application scope getServletContext().setAttribute( "counter1", new Integer( 0 ) ); } protected void doGet( HttpServletRequest request, HttpServletResponse response ) throws ServletException, IOException { ServletContext context = getServletContext(); Integer counter1 = (Integer) context.getAttribute( "counter1" ); counter1 = counter1 + 1; context.setAttribute( "counter1", counter1 ); HttpSession session = request.getSession(); Integer counter2 = (Integer) session.getAttribute( "counter2" ); if( counter2 == null ) counter2 = new Integer( 0 ); counter2 = counter2 + 1; session.setAttribute( "counter2", counter2 ); PrintWriter out = response.getWriter(); out.println( "" ); out.println( "Shared Request Counter 2" ); out.println( "" ); out.println( "Both counters are incremented." ); out.println( "" ); } }