I am totally new with java. I have a applet with 1 launcher file and 4 other folders containing Java .class files.
I am trying to run/execute file name start.iml with java launcher.

I got the error : unable to launch the application

here code:

<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/resource" type="java-resource" />
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />

here is exception :

MissingFieldException[ The following required field is missing from the launch file: <jnlp>]
at com.sun.javaws.jnl.XMLFormat.process(Unknown Source)
at com.sun.javaws.jnl.XMLFormat.parse(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescript or(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescript or(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main.access$000(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

please help me.