Start a java program without the console

Question

I am trying to use this GUI mod for a Minecraft Server. I wrote a batch file so the server can start with more RAM. When I run just the .jar file, no command window opens and it runs just fine (of course with about 256mb ram) I was reading online that javaw starts a jar file without a command-line-console. But when I use javaw, the command console opens, but when I close it the program remains open. this is my batch file:

@echo off 
"%ProgramFiles(x86)%\Java\jre6\bin\javaw.exe" -jar -Xms1024m -Xmx1024m crafty.jar 
@echo on

I don't understand java as well as most, so please try to be as clear as possible. Thanks

Answer 1

If you want to start a java program without console popup under windows, this should be helpful: In command prompt type the following:

start javaw -jar -Xms1024m -Xmx1024m crafty.jar

If you want you can also write this as a batch file.

Answer 2

• You should Create Shortcut of "%ProgramFiles(x86)%\Java\jre6\bin\javaw.exe", let's name it as Minecraft, then
• edit the Properties of Minecraft shortcut. In the Target textbox, append -jar -Xms1024m -Xmx1024m crafty.jar in the end of javaw.exe
• change the Start in as the folder which contains the crafty.jar

Double-click the Minecraft icon to star the server.

That's all.

Answer 3

Create a .bat file with

start javaw -jar yourjar.jar arg0 arg1

Answer 4

start javaw -jar yourjar.jar arg0 arg1

will open the console, but close immediately. it is different from running window .exe.

Answer 5

You will always get the command window opening and closing because you are starting it inside a command window or batch script (which launches an implicit command window to run itself). In order not to get a command window you must open the file from "not a command window" i.e. an executable launcher.

Take a look at Launch4j which can run a java program from an exe. It can also hide-away the jar file inside the exe if you like.

http://launch4j.sourceforge.net/

There's a little YouTube clip showing them creating an exe from a jar.

Answer 6

A batch file is a way of starting the command prompt with the code pre-written, using javaw is a way of open then closing the prompt. Like I said a batch is a commands prompt you can't stop it from opening.