Method connect

src/class201/Code07_Network1.java:182–189

(int c, int x, int y)

	}

	public static void connect(int c, int x, int y) {
		int u = node(c, x);
		int v = node(c, y);
		nodeDegree[u]++;
		nodeDegree[v]++;
		link(u, v);
		edgeColor.put(edge(x, y), c);
	}

	public static void disconnect(int c, int x, int y) {
		int u = node(c, x);