Sorting array in descending order in java

Question

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?

Can you please post more details like, how your array 'efficiency' is initialized ? what type of elements does the array hold ? — Sandeep Lakdawala
– Sandeep Lakdawala, Commented Mar 16, 2020 at 5:49

wareisjared · Accepted Answer · 2020-03-16 05:52:07Z

0

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:

answered Mar 16, 2020 at 5:52

wareisjared

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