How to print list of string inside bracket? [closed]

Answer 1

You have declared paint as a String (and not a List of Strings) here.

public String paint;

And then you convert the String variable to a List.

List words = Arrays.asList(paint);

Which is why the list words has only the single String which was added last with house1.addPaint(), which just assigns the String this.paint = paint; inside it.

There are many ways you can fix it. But I'll tell the one that requires the least amount of changes.

My suggestion:

public void addPaint(String paint) {
    paints.add(paint);
}

and

List words = Arrays.asList(paints);