标题翻译
Sorting array in descending order in java
问题
我试图对名为"efficiency"的数组进行降序排序，就像这样：
Arrays.sort(efficiency, (a, b) -> b - a)
然而，它抛出了一个异常，表示没有找到合适的方法。
然后我查阅了文档，发现实际上存在着这个方法：
sort(T[] a, Comparator<? super T> c)
这是什么问题呢？
英文翻译
I was trying to sort an array called efficiency in descending order just like this:
Arrays.sort(efficiency, (a, b) -> b - a)
However, it throws an exception that no suitable method has been found.
I then check the Documentation and found that there actually is the method
sort(T[] a, Comparator<? super T> c)
What's wrong with that?
答案1
得分: 0
假设数组具有非基本数据类型，您可以使用以下代码：
Arrays.sort(efficiency, Collections.reverseOrder());
对于特定于lambda的方法，您可以查看这个详细的回答：
https://stackoverflow.com/a/21970805/10171575
英文翻译
Assuming the array has a non-primitive datatype, you could use the following:
Arrays.sort(efficiency, Collections.reverseOrder());
For a lambda specific approach I would check out this detailed answer:
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