按降序对基本类型的数组进行排序

Question

In Java, how do I sort a float[] array in reverse order with Arrays.sort()? Or at least some function using the same algorithm.

Please avoid any kind of comments about using Float instead of float . Also reversing the array after it has been sorted isn't an option either as it's a very critical piece of code.

Answer 1

来自Apache Commons的Javas Arrays.sort()和ArrayUtils.reverse() 。

Answer 2

I suggest taking the source code from Arrays.sort(float[]), copy it in a new method in your project, then modify it in the relevant place to reverse (negate) the comparison result.

It should return exactly what you wanted - a reverse-sorted array, using exactly the same algorithm.

Answer 3

Arrays.sort(array,Collections.reverseOrder());