Questions and Exercises: Doing More With Rich Internet Applications

Questions

  • True or False: Rich Internet applications (RIAs) can set secure properties by prefixing the property name with "jnlp." .

  • True or False: Only signed RIAs can use JNLP API to access files on the client.

Exercises

  • To the following JNLP file, add a secure property called jnlp.foo and set its value to true .
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="" href="">
    <information>
        <title>Dynamic Tree Demo</title>
        <vendor>Dynamic Team</vendor>

    </information>
    <resources>
        <!-- Application Resources -->
        <j2se version="1.6+" href=
            "http://java.sun.com/products/autodl/j2se" />
        <jar href="DynamicTreeDemo.jar" main="true" />
    </resources>
    <applet-desc 
       name="Dynamic Tree Demo Applet"
       main-class="components.DynamicTreeApplet"
       width="300"
       height="300">
     </applet-desc>
     <update check="background"/>
</jnlp>

Check your answers.