比较2个ArrayList的简单方法

将列表转换为

Collection

removeAll

    Collection<String> listOne = new ArrayList(Arrays.asList("a","b", "c", "d", "e", "f", "g"));    Collection<String> listTwo = new ArrayList(Arrays.asList("a","b",  "d", "e", "f", "gg", "h"));    List<String> sourceList = new ArrayList<String>(listOne);    List<String> destinationList = new ArrayList<String>(listTwo);    sourceList.removeAll( listTwo );    destinationList.removeAll( listOne );    System.out.println( sourceList );    System.out.println( destinationList );

输出：

[c, g][gg, h]

[编辑]

其他方式（更清晰）

  Collection<String> list = new ArrayList(Arrays.asList("a","b", "c", "d", "e", "f", "g"));    List<String> sourceList = new ArrayList<String>(list);    List<String> destinationList = new ArrayList<String>(list);    list.add("boo");    list.remove("b");    sourceList.removeAll( list );    list.removeAll( destinationList );    System.out.println( sourceList );    System.out.println( list );

输出：

[b][boo]