sample to print out all locales in Africa

AfriLang.java

// by srl
// use: ( cd ${HOME}/cldr-trunk/tools/java ; ant jar ) ;  javac -classpath ${HOME}/cldr-trunk/tools/java/cldr.jar AfriLang.java && java -DCLDR_DIR=\
${HOME}/src/cldr-trunk -classpath ${HOME}/cldr-trunk/tools/java/cldr.jar:. AfriLang


import com.ibm.icu.impl.Relation;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.TreeSet;
import org.unicode.cldr.util.*;

public class AfriLang {
    public static final CLDRConfig config = CLDRConfig.getInstance();
    public static final Factory f = config.getFullCldrFactory();
    public static final Set<CLDRLocale> ALL_LOCS = f.getAvailableCLDRLocales();
    public static final SupplementalDataInfo SUPP = config.getSupplementalDataInfo();
    public static final Relation<String,String> terrToContained = SUPP.getTerritoryToContained();

    public static final Relation<String,String> containedToTerr = Relation.of(new LinkedHashMap<String, Set<String>>(),
        LinkedHashSet.class).addAllInverted(terrToContained);
    
    /** 
     * Is this locale in Africa?
     */
    public static boolean isAfrica(final CLDRLocale l) {
        final String rgn = l.getCountry();
        if(rgn == null) return false; // no country

        return isAfricaRegion(rgn);
    }

    public static boolean isAfricaRegion(final String rgn) {
        final Set<String> pars = containedToTerr.get(rgn);
        if(pars == null) return false;

        if(pars.contains("002")) return true; // Africa
        for(final String par : pars) {
            if(isAfricaRegion(par)) return true;
        }
        return false;
    }
        
    public static void printSorted(final Set<CLDRLocale> list) {
        final Set<String> str = new TreeSet<String>(java.text.Collator.getInstance());
        for(final CLDRLocale l : list) {
            Factory.SourceTreeType type = Factory.getSourceTreeType(f.getSourceDirectoryForLocale(l.toString()));
            str.add(l.getDisplayName()+" - "+l.toLanguageTag() +  " " +
                    ((type!=Factory.SourceTreeType.common)?("["+type.toString().toUpperCase()+"]"):""));
        }
        for(final String s: str) {
            System.out.println(s);
        }
    }
    
    public static void main(String args[]) {
        // use the English CLDRfile for format
        CLDRLocale.setDefaultFormatter(new CLDRLocale.CLDRFormatter(config.getEnglish()));

        final Set<CLDRLocale> afriLocs = new LinkedHashSet<CLDRLocale>();

        for(final CLDRLocale l : ALL_LOCS) {
            if(isAfrica(l)) {
                afriLocs.add(l);
            }
        }

        printSorted(afriLocs);
    }
}

output: https://gist.github.com/srl295/b109b01ab7f63e0959b0