CODEWITHSUNDEEP
javawindowsbatch-file
Gubbinz
Gubbinz

Reputation: 1

Running a batch file from java

I just downloaded MCP to see how things work behind the scenes in Minecraft.

Inside MCP there are a bunch of batch files that you use to do things like: decompile, recompile, startclient, etc.

What I would like to be able to do is run these batch files from a basic java gui.

I'm good with the gui part but I havent got a clue how to run those batch files.

Here is an example of one of the batch files:

The file is at:

C:\MCP\startclient.bat

startclient contains the following:

@echo off

:try_python
set PYTHON=python
%PYTHON% --version >NUL 2>NUL
if errorlevel 1 goto try_python_mcp
goto foundit

:try_python_mcp
set PYTHON=runtime\bin\python\python_mcp
%PYTHON% --version >NUL 2>NUL
if errorlevel 1 (
    echo Unable to locate python.
    pause
    exit /b
)

:foundit
%PYTHON% runtime\startclient.py conf\mcp.cfg
pause

Can it be done?

Upvotes: 0

Views: 817

Answers (1)

MByD
MByD

Reputation: 137442

You can easily run a batch file from java using Runtime:

Process p = Runtime.getRuntime().exec("cmd /c start " + yourbatchFileName);

you can also grab I/O of the process, using p.getOutputStream(), p.getInputStream() etc.

See more about the Process class here.

And I suggest you take a look at this article as well.

Upvotes: 4

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