本文介绍了ArrayList包含另一个的ArrayList的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
有可能,我只是没有在这里找到一个简单的一行,但这是我的问题:
There is probably a simple one-liner that I am just not finding here, but this is my question:
如何检查是否一个ArrayList包含了所有在其他的ArrayList对象。我期待(如果存在)中的线沿线的东西:
How to check if an ArrayList contains all of the objects in another ArrayList. I am looking (if it exists) for something along the lines of:
//INCORRECT EXAMPLE:
if(one.contains(two))
{
return true;
}
else
{
return false;
}
例如:
ArrayList one = {1, 2, 3, 4, 5}
ArrayList two = {1, 2, 3} --> True
ArrayList two = {} --> True
ArrayList two = {1, 2, 3, 4, 5} --> True
ArrayList two = {1, 5, 2} --> True
ArrayList two = {1, 7, 4} --> False
ArrayList two = {0, 1, 3} --> False
ArrayList two = {4, 5, 6} --> False
ArrayList two = {7, 8, 9} --> False
谢谢!
推荐答案
有 containsAll
中声明称法 java.util.Collection中
接口。在您的设置 one.containsAll(二)
得到所需的答案。
There is a method called containsAll
declared in the java.util.Collection
interface. In your setting one.containsAll(two)
gives the desired answer.
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