如何在ObservableList中编辑特定对象？

Question

For example, I have an ObservableList which holds two strings:

string1 = "foo"
string2 = "bar"

I want to edit string1 so that it becomes "foobaz".

How can I do that?

I've tried using .set(int index, Object element) , but it adds another element, instead of editing the element at that index.

Answer 1

I've tried using .set(int index, Object element) , and now it works (?). So that means that I've basically solved my problem.

Thanks for the replies everyone, and sorry for wasting your time.

Answer 2

Assuming you want to replace the String foo and obsrverList is an ArrayList of String -

int size = obsrverList.size();

for(int index=0; index<size; index++){

   if("foo".equals(observerList.get(index)){

      obsrverList.set(index, "foobaz");

   }

}  

You have to set String instead of Object if obsrverList is an ArrayList of String .