Java Advanced Stream Manipulation

[pale cloak]

Hey, @lavish mist!
Please remember to /close this post once your question has been answered!

[dim plume]

hmm

Interesting. I'll try

[lavish mist]

It has to be done only using Stream but u can use various data structure

These are my answer for :

• get distribution of match per month
• get the top5 cities where most match occured

where on second solution Match::getVille is Match::getCity (im french, Ville=City)

Here is the csv file

I can provide a try catch method to import data

[finite fern]

hellllo

[lavish mist]

Hello sir

[finite fern]

lmaoo i am just a kid

you cant use for loop or anything?

[lavish mist]

Nope, it has to be done using Stream

This is what makes it hard haha

I have a method that gives me an ArrayList<String> with both team that played for a specific match, this i can use

So i could have a map {[team1, team2]=nb_match, [team2, team3]=nb_match, ...}

But then i have no idea how to get the maximum value

[finite fern]

Match(date, home_team, away _team, home_score, away_score, tournament, city, country) what are the data type of all this

oh nvm

[lavish mist]

date is a Calendar object

else String or int

[finite fern]

oh

get the name of the team that played the most
only this is left??

[lavish mist]

Yeap

[finite fern]

get the amount of goal scored
get the number of match played by Belgium since 2000
can u show the code how u did this two i dont really know much about stream but i will to help

[lavish mist]

yes

it uses Lambda expressions

for total amount of goal scored

were e.getNb_buts_marque_equipe_dom() is just e.getHome_Score()

and e.getNb_buts_marque_equipe_vis() is just e.getAway_Score()

This for Belgium

where isPlaying simply returns a boolean if a match has the specific team as home or away team

[finite fern]

oh

    static long l;
    public static void main(String[] args) {
        List<Integer> list = List.of(1,3,4,1);
        list.stream().forEach(e-> l = l+e);
        System.out.println("total is: "+l );
    }

is this correct way of getting the total??

[lavish mist]

Sorry dude but I ain't gonna give you a course on basic stream manipulation, you can find this on web really fast and for my advanced question i'm not quite sur that if you start from there u can answer :/

[finite fern]

by team- home team away team or city ??

[lavish mist]

By team !

So it should aggregate the number the team has been home_team and the number the team has been away_team

[lavish mist]

Found a solution !