Java中的列表差异

List<Integer> original = Arrays.asList(12,16,17,19,101);List<Integer> selected = Arrays.asList(16,19,107,108,109);ArrayList<Integer> add = new ArrayList<Integer>(selected);add.removeAll(original);System.out.println("Add: " + add);ArrayList<Integer> remove = new ArrayList<Integer>(original);remove.removeAll(selected);System.out.println("Remove: " + remove);

输出：

Add: [107, 108, 109]Remove: [12, 17, 101]

使用Collection的removeAll方法。参见javadocs。