java比较器比较字符串,字符串列表比较器

小编典典

Collection firstList = new ArrayList() {{

add("str1");

add("str2");

}};

Collection secondList = new ArrayList() {{

add("str1");

add("str3");

add("str4");

}};

System.out.println("First List: " + firstList);

System.out.println("Second List: " + secondList);

// Here is main part

secondList.removeAll(firstList);

System.out.println("Result: " + secondList);

更新： 更复杂的代码版本

Collection firstList = new ArrayList();

firstList.add("str1");

firstList.add("str2");

Collection secondList = new ArrayList();

secondList.add("str1");

secondList.add("str2");

secondList.add("str3");

System.out.println("First List: " + firstList);

System.out.println("Second List: " + secondList);

// Here is main part

secondList.removeAll(firstList);

更新：

要获得两个字符串列表之间的实际差异，请执行此操作。

Set setOne = new HashSet();

Set setTwo = new HashSet();

setOne.add("1");

setOne.add("2");

setOne.add("5");

setTwo.add("1");

setTwo.add("3");

setTwo.add("4");

Set setTwoDummy = new HashSet(setTwo);

setTwo.retainAll(setOne);

setTwoDummy.addAll(setOne);

setTwoDummy.removeAll(setTwo);

System.out.println(""+setTwoDummy);

2020-11-01