How to launch groovy console during runtime of a java program

Question

I want to launch groovy console during runtime of my java program and Groovy Console should be able to access some java variables
ex.

int x = 5 ;// a variable in java program   
launchGroovyConsole(); // hypothetical method to launch groovy console

Now in groovy console x should be accessible

println x  
==> 5

score 3 · Answer 1 · answered Jul 27 '15 at 08:11

Take a look at the /bin folder of your groovy installation. There you'll find the GroovyConsole.bat script in which you'll find a reference to groovy.ui.Console: http://docs.groovy-lang.org/latest/html/gapi/groovy/ui/Console.html

This contains the main() method of the console - you should be able to launch it though this method.

Regarding the binding of variables to the console, I guess the documentation link above will help you to figure out how to make your local variables accessible from within the console.

score 1 · Accepted Answer · answered Jul 28 '15 at 12:52

I am just summarizing here how we can launch Groovy Console in run time.
We can include below code in java class or in groovy class to launch groovy console.

import groovy.ui.Console
public class TestGroovyConsole{
    public static void main(String[] args){
        int x = 5;
        Console console = new Console();
        console.setVariable("x",x);// to make x available in console
        console.run(); // to launch console
    }

}

How to launch groovy console during runtime of a java program

2 Answers2