Method createDegrees

java/0269-alien-dictionary.java:58–62

()

    }

    private void createDegrees() {
        for (char c : this.adjList.keySet()) {
            this.degrees.put(c, this.adjList.get(c).size());
        }
    }

    private List<Character> topologicalSort() {
        // take zero degrees first into a queue