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11.10.2005 at 10:25PM PST, ID: 21627361
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9.4

How to run Jar files.....

Asked by imarshad in Java Programming Language

Tags: , , ,

Hi all,
        I have been given a JAR file that is supposed to run. I have got no experience what so ever with Java. I want to know how to run this file???? Following is what I have already tried .....

java -jar myFile.jar
Failed to load Main-Class manifest attribute from
myFile.jar

Then I unzipped the Jar file with WinRAR and then found the following files in the archive.....

icon.png
logo.png
scroll.png
intro.midi
myFile.class
gfxcanvas.class
META-INF (Folder with the file MANIFEST.MF)

Now I tried to execute the class files using the following code.....

C:\myGen>java myFile
Exception in thread "main" java.lang.NoClassDefFoundError: javax/microedition/mi
dlet/MIDlet
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$100(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)

also I tried

C:\myGen>java myFile.class
Exception in thread "main" java.lang.NoClassDefFoundError: myFile/class

and here is the MANIFEST.MF file if it helps.....

Manifest-Version: 1.0
MicroEdition-Configuration: CLDC-1.0
MIDlet-Name: myFile
Created-By: 1.4.2_03 (Sun Microsystems Inc.)
MIDlet-Vendor: Sun Microsystems
MIDlet-1: myFile, icon.png, myFile
MIDlet-Version: 1.0
MicroEdition-Profile: MIDP-2.0


Can someone suggest some way to run this program???? How can I be sure that this is some bogus file that cant be run?????

Imran
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[+][-]11.10.2005 at 10:27PM PST, ID: 15271761

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About this solution

Zone: Java Programming Language
Tags: run, jar, how, files
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Solution Provided By: objects
Participating Experts: 2
Solution Grade: A
 
 
[+][-]11.10.2005 at 10:30PM PST, ID: 15271767

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[+][-]11.10.2005 at 10:36PM PST, ID: 15271783

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[+][-]11.10.2005 at 10:37PM PST, ID: 15271787

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[+][-]11.10.2005 at 10:48PM PST, ID: 15271812

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[+][-]11.10.2005 at 11:11PM PST, ID: 15271855

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