Create sub-array list from an ArrayList

Question

I have an ArrayList such as this one

ArrayList<String> listed = new ArrayList<>();

listed.add("sun, water, autumn");
listed.add("moon, wind, winter");
listed.add("venus, fire, summer");

and I would like to create three separate ArrayList so that first one contains

("sun, moon, venus")

second one

("water, wind, fire")

and last

("autumn, winter, summer")

Thanks

Thanks you all for your very useful help

Alberto acepsut
– Alberto acepsut

2013-08-30 09:55:07 +00:00
Commented Aug 30, 2013 at 9:55 — Alberto acepsut
– Alberto acepsut, Commented Aug 30, 2013 at 9:55

Ruchira Gayan Ranaweera · Accepted Answer · 2013-08-30 09:52:03Z

3

Try this

    ArrayList<String> listed = new ArrayList<>();
    listed.add("sun, water, autumn");
    listed.add("moon, wind, winter");
    listed.add("venus, fire, summer");
    List<String> subList1=new ArrayList<>();
    List<String> subList2=new ArrayList<>();
    List<String> subList3=new ArrayList<>();
    for(String i:listed){
         subList1.add(i.split(",")[0]);
         subList2.add(i.split(",")[1]);
         subList3.add(i.split(",")[2]);
    }

answered Aug 30, 2013 at 9:52

Ruchira Gayan Ranaweera

35.7k17 gold badges78 silver badges117 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Suresh Atta · Accepted Answer · 2013-08-30 09:44:43Z

0

Assuming you have a Fixed format

    List<String> list1 =  Arrays.asList(listed.get(0).split(",")); 
    List<String> list2 =  Arrays.asList(listed.get(1).split(",")); 
    List<String> list3 =  Arrays.asList(listed.get(2).split(","));

answered Aug 30, 2013 at 9:44

Suresh Atta

122k38 gold badges206 silver badges315 bronze badges

Comments

MansoorShaikh · Accepted Answer · 2013-08-30 09:49:04Z

0

ArrayList finalList  = new ArrayList();
for(String s : listed) {
    finalList.add(Arrays.asList(s.split(",")));  
}

answered Aug 30, 2013 at 9:49

MansoorShaikh

9231 gold badge6 silver badges19 bronze badges

2 Comments

Fluffeh Over a year ago

When posting answers, it is really a great thing to explain the code that you are posting. Even if it works perfectly and it is tested, adding the explanation of WHY it works is a great thing to do.

MansoorShaikh Over a year ago

Thanks Fluffeh for your valuable comment. I will ensure this going forward.

Collectives™ on Stack Overflow

Create sub-array list from an ArrayList

3 Answers 3

Comments

Comments

2 Comments

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

2 Comments

Related