How to run a jar file using Java application.

Hi all,
I know that jar file can run using the following command, using the command prompt.
java -jar jar-fileBut I don't know how to run that command through a Java code. Hope it's clear to you.
So can you please explain how can I do it.
Thanks,
itsjava

rayon.m wrote:
The solution given by ropp appears to have nothing to do with what you asked about.Ok sir, I got the point.
I've try a test as follows. But it doesn't give any output. Even not an exception.
        try {
            String[] temp = new String[]{"java", " -jar", " MainApp.jar"};
            Runtime rt = Runtime.getRuntime();
            Process proc = rt.exec(temp);
            int exitVal = proc.waitFor();
            System.out.println("ExitValue: " + exitVal);
            System.out.println("Temp_Values");
        catch(InterruptedException ex) {
            System.out.println(ex.getMessage());
        catch (IOException ex) {
            System.out.println(ex.getMessage());
        }I've debug and see, but the exitValue is even not exist at run time. Can you tell me where I'm going wrong.

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