public class Test2
{
public static Node test() {
Node n1 = new Node();
n1.setWert(3);
Node n2 = new Node();
n2.setWert(7);
n1.setNext(n2);
Node n3 = new Node();
n3.setWert(11);
n2.setNext(n3);
Node n4 = new Node();
n4.setWert(12);n3.setNext(n4);
return n1;
}