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07-compiler-usage, added --jvm #466

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Jul 17, 2020
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07-compiler-usage, added --jvm #466

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8f3c6dc
07-compiler-usage, added `--jvm`
uvtc Jul 16, 2020
f6d041b
12-target-details, added JVM target
uvtc Jul 16, 2020
7cd1598
12-target-details.md, JVM, clarified prereqs
uvtc Jul 17, 2020
be61117
removed note about some OS's allowing double-click jar
uvtc Jul 17, 2020
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1 change: 1 addition & 0 deletions content/07-compiler-usage.md
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Expand Up @@ -30,6 +30,7 @@ The second question usually comes down to providing an argument specifying the d
* `--cpp <directory>` Generate [C++](target-cpp) source code in specified directory and compiles it using native C++ compiler.
* `--cs <directory>` Generate [C#](target-cs) source code in specified directory.
* `--java <directory>` Generate [Java](target-java) source code in specified directory and compiles it using the Java Compiler. Add `-D jvm` to generate JVM byte code directly bypassing Java compilation step.
* `--jvm <file_name.jar>` Generate [JVM bytecode](target-jvm) as a jar file.
* `--python <file_name.py>` Generate [Python](target-python) source code in the specified file.
* `--lua <file_name.lua>` Generate [Lua](target-lua) source code in the specified file.
* `--hl <file_name.hl>` Generate [HashLink](target-hl) byte code in specified file.
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46 changes: 46 additions & 0 deletions content/12-target-details.md
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Expand Up @@ -1945,6 +1945,52 @@ java -jar bin/Main.jar



<!--label:target-jvm-->
### JVM

<!--subtoc-->

<!--label:target-jvm-getting-started-->
#### Getting started with Haxe/JVM

To get started with Haxe/JVM, create a new folder and save this class as `Main.hx`.

[code asset](assets/HelloWorld.hx)

To compile Haxe to JVM bytecode we need two obvious prerequisites installed:

* [hxjava haxelib](http://lib.haxe.org/p/hxjava). This is the support library for the Java backend of the Haxe compiler.
* [JRE - Java Runtime Environment](https://java.com/download/).
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Run the following from the command line:

```hxml
haxe --jvm bin/Main.jar --main Main
```

Another possibility is to create and run (double-click) a file called `compile.hxml`. In this example the hxml-file should be in the same directory as the example class.
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```hxml
--jvm bin/Main.jar
--main Main
```

The compiler outputs in the given **bin**-folder, which contains the generated .jar file which prints the traced message when you execute it.

To execute, run the following command:

```sh
java -jar bin/Main.jar
```

##### More information

* [Haxe/Java API docs](https://api.haxe.org/java/)
* [Java Platform Documentation](https://docs.oracle.com/javase/)





<!--label:target-cs-->
### C#
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