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Executable Jar On An Android?

Jason Newman
Ranch Hand

Joined: Oct 20, 2010
Posts: 53
I am trying to make my girlfriend an app for her Droid, and all I can do is program in Java. So, I have a executable .jar and so how do I get it working on her phone? Does it have to be converted? Or can you just apply it straight to the phone? If so how?
Lester Burnham
Rancher

Joined: Oct 14, 2008
Posts: 1337
No, it won't run as is - you need to use the SDK tools to convert all classes/jar files into an Android-compatible format. But more importantly, the Android API is rather different from desktop Java, e.g. the java.awt.* and javax.swing.* packages are not available - Android has its own, rather different, GUI technology.

If you haven't done so yet, download the Android SDK and look through its documentation (also available online at http://developer.android.com/guide/) - it contains many introductory articles on the API and the tools you need to use. The AndroidFaq also points to much useful material.
 
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