Why does a void function return a value?

Question

I\'m a programming beginner and I have question regarding a return value from a function.

I´m studying Java.

I have attached code from my book that features a cl

Answer 1

The sort() method modifies the array passed as an argument; that is, the original array is modified.

Say you have array a which value is [ 3, 2 ]; you call sort(a); if your code looks like:

// printArray is an hypothetical method
printArray(a);
sort(a);
printArray(a);

then the output would be:

[3, 2]
[2, 3]

As a result there is no need for sort() to return a result at all.

You can however modify the sort() method to make a copy of the array, sort the copy and return that copy.