Java – removes duplicate beans from the list

I loop through a set of beans and check something and add it to the list I just want to add a specific item

List<PartsBean> beans = hotPartsDAO.getDeletedList(user);
List<FinalItemBean> finalItemList = new ArrayList<FinalItemBean>();
for (PartsBean bean : beans)
{
    if (!bean.getFinalItem().isActive())
    {
        finalItemList.add(bean.getFinalItem());
    }
}

I got examples in the list

"test"
"test"
"test"
"hello"

I just want a "test"

If I want to use a collection, how do I modify it so that I can add the components of the collection to the following:

This is how it is currently passed through list < finaleitembean > name list

protected final void buildFinalItemFilterList( Action action,PartsDAO dao,List<FinalItemBean> list )

    throws sqlException
{
    List<FinalItemBean> finalItems = dao.getAllFinalItems( false );
    FinalItemBean finalItem;

    for (FinalItemBean e: list )
    {
         finalItem = dao.getFinalItemById(e.getId());
         finalItems.add(finalItem);
    }

    Collections.sort( finalItems );
    action.setRequestAttribute("finalItems",finalItems );
}

Solution

The interface list has a method named contains. If there is' occurrence 'in the list, it returns true. If it is not in the list, it returns false

if(!myList.contains(person)) myList.add(person);

It's easy You can also use sets, but I think lists are more flexible than sets, or that's what some developers believe