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example.java.helloworld

This is "Hello World" Example for Java.

The structure HelloWorld package is like this:

example.java.helloworld/
|-- HelloWorld
|   `-- Main.java
|-- LICENSE
|-- Manifest.txt
`-- README.md

Compile class

For compile the main class for package, execute the follow command:

javac HelloWorld/Main.java

This generate the Main.class file into HelloWorld directory.

Run class

For run the main class for package, execute the follow command:

java -cp . HelloWorld.Main

This show the Hello world message.

Create a JAR file

For pack the main class for package as a JAR file, execute the follow command:

jar cfme Main.jar Manifest.txt HelloWorld.Main HelloWorld/Main.class

Run a JAR file

For run the JAR file packed, execute the follow command:

java -jar Main.jar

This show the Hello world message.

Reference