Removing an element from a List not working as expected

Question

I have an ArrayList of String arrays which is added to like so:

List data = new ArrayList<>();
data.add(new String[] {var, lex, valor});
         


        

Answer 1

data.remove(new String[]{var, lex, valor});

Will never work because even if the arrays contain the same thing, they are not equal to each other, and the array will not be found in the list.

---

public void eliminarPos(String var, String lex, String valor, Integer ii) {
    boolean uno=data.remove(ii);
    System.out.println(uno);
}

Will not work because you pass it an Integer instead of an int. An Integer is an object, so it is searching the list for that object. Change it to:

public void eliminarPos(String var, String lex, String valor, int ii) {
    data.remove(ii);
}