junit/junit_libs/Node.java

package junit_libs;

public class Node<T> {
    // Instance variables:
    private T element;
    private Node<T> next;
    // Simple constructors:
    public Node() {
        this(null, null);
    }
    public Node(T e, Node<T> n) {
        element = e;
        next = n;
    }
    // Accessor methods:
    public T getElement() {
        return element;
    }
    public Node<T> getNext() {
        return next;
    }
    // Modifier methods:
    public void setElement(T newElem) {
        element = newElem;
    }
    public void setNext(Node<T> newNext) {
        next = newNext;
    }

    public boolean isList (){
        if (next != null)
            return next.isList();
        else return true;
    }

    // Klassenvariable (Defaultwerte)

    static String listStart = "["; // start of a list in printed representation
    static String listEnd = "]"; // end of a list in printed representation
    static String elemSeparator = ", "; // separator of elements of a list

    public String printList (){
    return listStart + printElems() + listEnd;
    }

    public String printElems(){
    return (((element instanceof Node) && (((Node<?>)element).isList()))
        ? ((Node<?>)element).printList() : element.toString())
        + ((next != null) ? elemSeparator + next.printElems() : "");
    }

    public String toString(){
        return element.toString()
            + ((next != null) ? elemSeparator + next.toString() : "");
    }


    public int length(){
        return ((next == null) ? 1 : 1 + next.length());
    }


}