CODEWITHSUNDEEP
javaswinglist
Merlin Bögershausen
Merlin Bögershausen

Reputation: 159

Multi-Select from list

In my Java application, i need some sort of multiple-selection from a list,is there any way except a self implemented funktion like this:

private List<T> list = someListClass(); //Contains the data

public List<T> getByKey(Key key){
   List<T> returnList = someListClass();
   for(Element e : list){
      if(e.qualifiedBy(key)) returnList.add(e);
   }
   return returnList;
}

Upvotes: 3

Views: 209

Answers (1)

JB Nizet
JB Nizet

Reputation: 691755

Your method is fine.

With Java8 lambdas, the above will be easier to write:

public List<T> getByKey(Key key){
    return list.stream().filter(e -> e.qualifiedBy(key)).into(someListClass());
}

But before that, what you have is the simplest thing.

Upvotes: 2

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