Method convertIntToSet

java/Chapter 9/Question9_4/Question.java:27–37

(int x, ArrayList<Integer> set)

	}
	
	public static ArrayList<Integer> convertIntToSet(int x, ArrayList<Integer> set) {
		ArrayList<Integer> subset = new ArrayList<Integer>(); 
		int index = 0;
		for (int k = x; k > 0; k >>= 1) {
			if ((k & 1) == 1) {
				subset.add(set.get(index));
			}
			index++;
		}
		return subset;
	}
	
	public static ArrayList<ArrayList<Integer>> getSubsets2(ArrayList<Integer> set) {
		ArrayList<ArrayList<Integer>> allsubsets = new ArrayList<ArrayList<Integer>>();