Dear all,

I am new in here and have a stupid question concerning the following stupid code :

package jforex;

import java.util.*;

import com.dukascopy.api.*;

public class simple_outputs1 implements IStrategy {
    private IEngine engine;
    private IConsole console;
    private IHistory history;
    private IContext context;
    private IIndicators indicators;
    private IUserInterface userInterface;
    
    public void onStart(IContext context) throws JFException {
        this.engine = context.getEngine();
        this.console = context.getConsole();
        this.history = context.getHistory();
        this.context = context;
        this.indicators = context.getIndicators();
        this.userInterface = context.getUserInterface();
        console.getOut().println("simple_outputs1 is started!!   :-)");
         
         IFeedDescriptor feedDescriptor = new TicksFeedDescriptor(Instrument.EURUSD);
         IChart openChart(IFeedDescriptor feedDescriptor);
         
    }

    public void onAccount(IAccount account) throws JFException {
    }

    public void onMessage(IMessage message) throws JFException {
    }

    public void onStop() throws JFException {
        console.getOut().println("simple_outputs1 is closed!!   :-)");
    }

    public void onTick(Instrument instrument, ITick tick) throws JFException {
    }
    
    public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
    }
}

Why does this not open the EUR-USD chart?
I would like to learn and understand...

Thank you!

first of all the code does not compile, here is an example how to do this:
https://www.dukascopy.com/wiki/#Chart_Operations/Open/Close_chart