hi everyone
I want to trade a lot of pairs at once.
for simplicity suppose they are only three GBPUSD , EURUSD , USDJPY
I want to choose the tradable pairs by a Boolean variable .see the following image



my question is how to use this Boolean variable as a real filter to choose tradable pairs
consider this code

public class   multi_pairs implements IStrategy {
 @Configurable("EURUSD")
    public boolean  EURUSD = false;
    @Configurable("GBPUSD")
    public boolean  GBPUSD = true;
    @Configurable("USDJPY")
    public boolean  USDJPY = false;

    public Instrument instrument1 = Instrument.EURUSD;
    public Instrument instrument1 = Instrument.GBPUSD;
    public Instrument instrument3 = Instrument.USDJPY;
    public  Instrument[] my_instrument={instrument1, instrument2, instrument3};

  public void onStart(IContext context) throws JFException {
Set<Instrument> instruments = new HashSet<Instrument>();
     instruments.add(instrument1);
     instruments.add(instrument2);
     instruments.add(instrument3);
 context.setSubscribedInstruments(instruments);
for (int i = 0; i <  my_instrument.length; i++) 
        {
          
//here comes the question how to code this : if(my_instrument[i] Boolean box is checked to be traded && other conditions)

        submitOrder(my_instrument[i],BUY,0);

        }
 

if you can also shorten my code regarding subscribing instruments and the my_instrument array it will be great

Hi brilliant,
There is universal way to solve your problem, see code below

package test;

import com.dukascopy.api.Configurable;
import com.dukascopy.api.IAccount;
import com.dukascopy.api.IBar;
import com.dukascopy.api.IConsole;
import com.dukascopy.api.IContext;
import com.dukascopy.api.IEngine;
import com.dukascopy.api.IHistory;
import com.dukascopy.api.IIndicators;
import com.dukascopy.api.IMessage;
import com.dukascopy.api.IStrategy;
import com.dukascopy.api.ITick;
import com.dukascopy.api.IUserInterface;
import com.dukascopy.api.Instrument;
import com.dukascopy.api.JFException;
import com.dukascopy.api.Period;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

public class InstrumentSet implements IStrategy {
    
    @Configurable("Instruments")
    public Set<Instrument> instruments = new HashSet<Instrument>(
            Arrays.asList(new Instrument[] {Instrument.EURUSD, Instrument.GBPUSD, Instrument.USDJPY})
    );
    
    private IEngine engine;
    private IConsole console;
    private IHistory history;
    private IContext context;
    private IIndicators indicators;
    private IUserInterface userInterface;

    @Override
    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();
        
        context.setSubscribedInstruments(instruments);
    }

    @Override
    public void onTick(Instrument instrument, ITick tick) throws JFException {
    }

    @Override
    public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
    }

    @Override
    public void onMessage(IMessage message) throws JFException {
    }

    @Override
    public void onAccount(IAccount account) throws JFException {
    }

    @Override
    public void onStop() throws JFException {
    }
}