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System Shell in a Java Application

5 replies on 1 page. Most recent reply: Aug 19, 2002 4:08 AM by Lucio

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Lucio

Posts: 14
Nickname: luzzy00
Registered: Jul, 2002

System Shell in a Java Application Posted: Jul 25, 2002 6:31 AM
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Hello,
I need to open an image (.jpg),with the standard program of the operative system.
How can I do?


Don Hill

Posts: 70
Nickname: ssswdon
Registered: Jul, 2002

Re: System Shell in a Java Application Posted: Jul 25, 2002 7:08 AM
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Take a look at the Runtime class, I believe that you will need to call Runtime.exec();

Lucio

Posts: 14
Nickname: luzzy00
Registered: Jul, 2002

Re: System Shell in a Java Application Posted: Jul 26, 2002 4:08 AM
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I have read about the class Runtime, but I don't understand how I can use this class.
Can you show me a simple example,please?
thank you

Lucio

Posts: 14
Nickname: luzzy00
Registered: Jul, 2002

Re: System Shell in a Java Application Posted: Jul 26, 2002 4:37 AM
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I have write so:
try{
String[] cmdLine = {"open", "c:/test.jpg"};
Process a=Runtime.getRuntime().exec(cmdLine);
}catch(Exception e)
{}

It gives me a createProcess error, probabily because it
is not a command.com istruction.
I'd like to have an universal command to open the image with the default program.

thank you

Don Hill

Posts: 70
Nickname: ssswdon
Registered: Jul, 2002

Re: System Shell in a Java Application Posted: Jul 26, 2002 6:06 AM
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Try the command "start" for example at the command prompt if I type start some.jpg it will open my jpg in the app associatted with jpg.

HTH

Lucio

Posts: 14
Nickname: luzzy00
Registered: Jul, 2002

Re: System Shell in a Java Application Posted: Aug 19, 2002 4:08 AM
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Thank you very much.

ps:I have tried on "Win", and I hope that my program go on "Mac Os" too.

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