Could not find or load main class with a Jar File

I’m trying to load a jar using With the manifest of In the Jar directory, I can clearly see a classes\TestClass file when I extract it. Edit: classes.TestClass does have a public static void main(String[] args). Package Deceleration in classes.TestClass is package classes; But I still keep getting the error message I’ve been through everything …

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How to extract .war files in java? ZIP vs JAR

If you look at the JarFile API you’ll see that it’s a subclass of the ZipFile class. The jar-specific classes mostly just add jar-specific functionality, like direct support for manifest file attributes and so on. It’s OOP “in action”; since jar files are zip files, the jar classes can use zip functionality and provide additional utility.

Difference between jar and war in Java

From Java Tips: Difference between ear jar and war files: These files are simply zipped files using the java jar tool. These files are created for different purposes. Here is the description of these files: .jar files: The .jar files contain libraries, resources and accessories files like property files. .war files: The war file contains …

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How to import a jar in Eclipse

You can add a jar in Eclipse by right-clicking on the Project → Build Path → Configure Build Path. Under Libraries tab, click Add Jars or Add External JARs and give the Jar. A quick demo here. The above solution is obviously a “Quick” one. However, if you are working on a project where you need …

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