Java Linked List search and delete method

Question

I have a project for computer science class and have everything done except for one method. The delete method. Basically I am making a linked list from user input and I need

Answer 1

public void delete (Magazine mag) {
    MagazineNode current = this.list;
    MagazineNode before;

    //if is the first element
    if (current.equals(mag)) {
        this.list = current.next;
        return;     //ending the method
    }


    before = current;

    //while there are elements in the list
    while ((current = current.next) != null) {

        //if is the current element
        if (current.equals(mag)) {
            before.next = current.next;
            return;     //endind the method 
        }

        before = current;
    }

    //it isnt in the list
}

the comments should explains whats happening