Regular Expression that displays locale information

[ralph]

I have 2 questions based on Regular expressions, and I'm stuck through the second.

2) Write a regular expression that displays only the following Locale information from all the available Locales. The information shows the displayname, a three-letter abbreviation for the locale's country and a three-letter abbreviation for the locale's language. Your program should verify your regular expression by printing out the information below.

English (Malta),MLT,eng
French (Belgium),BEL,fra
French (Canada),CAN,fra
French (Switzerland),CHE,fra
English (Philippines),PHL,eng
English (Ireland),IRL,eng
French (Luxembourg),LUX,fra
English (India),IND,eng
English (Australia),AUS,eng
French (France),FRA,fra
English (Canada),CAN,eng
English (Singapore),SGP,eng

I'm confused as to where to even start.

Question 1 required me to write a regular expression matching all the variations of my name, and asking the user to enter a string and testing if it matches; which I managed to complete.

[ralph]

EDIT: After a long search I'm guessing I need something along the lines of:

Locale[] locales = Calendar.getAvailableLocales();
        for(Locale l: locales)
        {
         if (l.matches("English|French.*)
            System.out.println(l);
        }

[ralph]

Any help please? It would be really appreciated :/

[quad64bit]

The list of locales you displayed, is that the input or the desired output?

[ralph]

The list of locales you displayed, is that the input or the desired output?

It's the desired output :)

[quad64bit]

So, what does the input look like?

[ralph]

So, what does the input look like?

If I knew that there wouldn't be a question :P - That's what I need to write :)

The input would be all the available locales --> using a regular expression --> go through the list of locales and display only the locales as the output above.

:/

[DarrylBurke]

Have you gone through the API for the Locale class? Which methods do you see that would be useful in obtaining the inputs for your regex?

db

[ralph]

The input for all the available locales is:

Locale locs[] = Locale.getAvailableLocales();
        
        for (Locale loc: locs)
        {
            System.out.print(loc.getDisplayName() + ",");
            System.out.print(loc.getISO3Country() + ",");
            System.out.println(loc.getISO3Language());
        }

so I need to use a regular expression to sort through those lists and only display the locales that match these:

English (Malta),MLT,eng
French (Belgium),BEL,fra
French (Canada),CAN,fra
French (Switzerland),CHE,fra
English (Philippines),PHL,eng
English (Ireland),IRL,eng
French (Luxembourg),LUX,fra
English (India),IND,eng
English (Australia),AUS,eng
French (France),FRA,fra
English (Canada),CAN,eng
English (Singapore),SGP,eng

Currently displays:

Malay (Malaysia),MYS,msa
Arabic (Qatar),QAT,ara
Icelandic (Iceland),ISL,isl
Finnish (Finland),FIN,fin
Polish,,pol
English (Malta),MLT,eng
Italian (Switzerland),CHE,ita
Dutch (Belgium),BEL,nld
Arabic (Saudi Arabia),SAU,ara
Arabic (Iraq),IRQ,ara
Spanish (Puerto Rico),PRI,spa
Spanish (Chile),CHL,spa
Finnish,,fin
German (Austria),AUT,deu
Danish,,dan
English (United Kingdom),GBR,eng
Spanish (Panama),PAN,spa
Serbian,,srp
Arabic (Yemen),YEM,ara
Macedonian (Macedonia),MKD,mkd

......

[ralph]

In the very rare case that someone actually wondered what the answer was, I got there in the end:

public static void matchlocales()
    {
        Locale locs[] = Locale.getAvailableLocales();
        
        for (Locale loc: locs)
        {
            if ((loc.getDisplayName().matches("English.[^UN]*|French.[^,]*"))
                    && (loc.getISO3Country().matches("[^Z].*")))
            {
                System.out.print(loc.getDisplayName() + ",");
                System.out.print(loc.getISO3Country() + ",");
                System.out.println(loc.getISO3Language());
            }
        }
    }