33.1 (Factorial table in JSF) Write a JSF page that displays a factorial page as
shown in Figure 33.25. Display the table in an h:outputText component. Set
its escape property to false to display it as HTML contents.
shown in Figure 33.25. Display the table in an h:outputText component. Set
its escape property to false to display it as HTML contents.
import javax.faces.bean.ManagedBean; import javax.faces.bean.RequestScoped; @ManagedBean @RequestScoped public class Exercise01 { public String getTable() { String result = "<h1><b>Display Factorials!</b></h1><table border=\"1\"><tr><td>Number</td><td>Factorial</td></tr>"; for (int i = 0; i <= 10; i++) { result += "<tr><td>" + i + "</td><td>" + computeFactorial(i) + "</td></tr>"; } result += "</table>"; return result; } private long computeFactorial(int n) { if (n == 0) { return 1; } else { return n * computeFactorial(n - 1); } } }
<?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://xmlns.jcp.org/jsf/html"> <h:head> <title>Exercise01</title> </h:head> <h:body> <center> <h:outputText escape="false" value="#{exercise01.table}" /> </center> </h:body> </html>
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