如何在Java中实现链接列表？

public void add(String s){
int index = hash(s) % data.length;
System.out.println(“Adding at index: ” + index);
Element curr = new Element(s);
Element e = this.data[index];
if (e == null) {
this.data[index] = curr;
return;
}
while(e.getNext() != null){
e = e.getNext();
}
e.setNext(curr);
}