I have java program with interface created using Java Swing. The interface contains a JButton. I want to add Action to that button so that it should execute another Java program which I specify.
How to do that?
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Andrew Thompson
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do you have an initial piece of code – Biswajit_86 May 09 '15 at 03:48
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If you wish to run the new code in the same JRE as the one running the button, establish an `URLClassLoader` to the new Java app. then load and use the classes as needed. – Andrew Thompson May 09 '15 at 03:57
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Try this:
yourButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
try {
Process proc = Runtime.getRuntime().exec("java -jar A.jar");
} catch (IOException ex) {
}
}
});
DoubleMa
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See [When Runtime.exec() won't](http://www.javaworld.com/article/2071275/core-java/when-runtime-exec---won-t.html) for many good tips on creating and handling a process correctly. **Then ignore it refers to `exec` and use a `ProcessBuilder` to create the process.** – Andrew Thompson May 09 '15 at 03:53
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2Huh.. I voted down before I even saw `} catch (IOException ex) { }` ..can I have another turn? That should be `} catch (IOException ex) { ex.printStackTrace(); }` – Andrew Thompson May 09 '15 at 03:55