How to capture "CTRL C" in a java program
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Posted By:   Anand_S
Posted On:   Monday, June 11, 2001 01:15 AM

When an application is running, if the user presses "CTRL C" the application will exit. So I dont want to exit my application I have to trap the "CTRL C" so that when the user presses "CTRL C" then i have to perform some other functionality.

- Thans in advance...

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Re: How to capture "CTRL C" in a java program

Posted By:   Simon_Ablett  
Posted On:   Thursday, June 28, 2001 07:16 AM

If you're writing java to run on various platforms. Bear in mind that CTRL-C might not mean the same on all of them.
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Re: How to capture "CTRL C" in a java program

Posted By:   Luigi_Viggiano  
Posted On:   Monday, June 11, 2001 04:31 AM

This is how to catch CTRL-C to free up resources before exit:


import java.io.IOException;
public class CtrlC extends Thread {

    public CtrlC() {
        Runtime.getRuntime().addShutdownHook(this);
    }

    public void run() {
        System.out.println("CTRL-C catched! ");
    }

    public static void main(String[] args) {
        new CtrlC();
        System.out.println("Press CTRL-C");
        while (true)
            try {
                System.in.read();
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
    }
}
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Re: How to capture "CTRL C" in a java program

Posted By:   Anonymous  
Posted On:   Monday, June 11, 2001 02:07 AM

Hi,


Check this info...
The javaw command is identical to java, except that with javaw there is no
associated console window. Use javaw when you don't want a command
prompt window to appear. The javaw launcher will, however, display a
dialog box with error information if a launch fails for some reason.
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