CODEWITHSUNDEEP
javaarraylist
Smackelbap
Smackelbap

Reputation: 19

Method Parameters and ArrayLists

Alright so I am working on a small program in which I have a method which accesses an Arraylist.

So:

public void setGroups(int groupA, int groupB, ArrayList< String > groups)

then I have my Arraylist in the body of my main method:

ArrayList groupSets = new ArrayList< String >( Arrays.asList("group1", "group2" ));

So my question is, how do I call this code in my main method? My issue is with the arraylist part. Also these ints of groupA/B, I will be using these to pull elements out of the ArrayList.

So it would be like?:

playGame(0, 1, ArrayList< String > groupSets);

Except I know that the arraylist part is wrong and I am unsure if the ints are right or wrong as well, they seem right but I could be completely off. Please any help?!

Upvotes: 0

Views: 62

Answers (3)

Bradley D
Bradley D

Reputation: 2825

In agreement with both of the partial answers above, let's see if we can make this comprehensive:

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class GroupStuff {

    public static void main(String[] args) {
        List<String> groupSets = new ArrayList<>(Arrays.asList("group1", "group2"));
        GroupStuff gs = new GroupStuff();
        gs.setGroups(0,1,groupSets);
    }

    public void setGroups(int groupA, int groupB, List<String> groups) {    
        //Do whatever you do here...
    }
}

And....

playGame(0, 1, ArrayList< String > groupSets);

should be

playGame(0, 1, groupSets);

Upvotes: 0

AJ_
AJ_

Reputation: 3987

Its just 

ArrayList<String> groupSets = new ArrayList<String>(); 
playGame(0, 1, groupSets);

Upvotes: 0

duffymo
duffymo

Reputation: 308753

Your declaration and call are different, so your question is a bit confusing.

The call should not include any type information:

setGroups(groupA, groupB, groups);

Upvotes: 1

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