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HELP! Runtime.getRuntime().exec("java Test")

2 replies on 1 page. Most recent reply: Mar 25, 2004 1:50 PM by Thomas SMETS

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silly ivy

Posts: 7
Nickname: akane
Registered: Mar, 2004

HELP! Runtime.getRuntime().exec("java Test")

Posted: Mar 24, 2004 8:38 AM

I have created a java code using threads and this code execute a class file using java.exe.

Process p = Runtime.getRuntime().exec("java -classpath c:\j2sdk1.2\bin\ Test);

The code using BufferedReader can print the output after executing the class file. But I hava a problem... how could I get inputs if the user is supposed to be prompted to input via the MS DOS prompt.. but I am not launching an MSDOS prompt.

Viswanatha Basavalingappa

Posts: 84
Nickname: viswagb
Registered: Nov, 2003

Re: HELP! Runtime.getRuntime().exec("java Test")

Posted: Mar 24, 2004 10:58 PM

Hi,

I think you can use the other method types..as bellow..

1. exec(String[] cmdarray, String[] envp)
Executes the specified command and arguments in a separate process with the specified environment.

2. exec(String[] cmdarray, String[] envp, File dir)
Executes the specified command and arguments in a separate process with the specified environment and working directory.

3. exec(String cmd, String[] envp)
Executes the specified string command in a separate process with the specified environment.

4. exec(String command, String[] envp, File dir)
Executes the specified string command in a separate process with the specified environment and working directory.

Thomas SMETS

Posts: 307
Nickname: tsmets
Registered: Apr, 2002

Re: HELP! Runtime.getRuntime().exec("java Test")

Posted: Mar 25, 2004 1:50 PM

I think that what you are looking for :)


Process p = Runtime.getRuntime().exec("java -classpath c:\\j2sdk1.2\\bin\\ Test"); // Carefull of the typo's in your code
// You must have double \ like in \\
p.getInputStream();
p.getOutputStream();

Why don't you prompt the user with a TextArea / TextField where they could provide their answer ?
It would be easier that wrapping the in/out put of one console to show it into another ... as you never know where the answer is expected to go ...
But it could be fun ;)

\T,

p.s. :
I don't get your point Viswanatha ?

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