Method in

chapter06/src/main/java/com/seaofnodes/simple/node/Node.java:119–119

Gets the ith input node @param i Offset of the input node @return Input node or null

(int i)

     * @return Input node or null
     */
    public Node in(int i) { return _inputs.get(i); }

    public int nIns() { return _inputs.size(); }