Java - Sort one array based on values of another array?

Question

I have an array of Strings that are instances of a class from external code that I would rather not change.

I also have an array of ints that was generated by callin

Answer 1

In java you need to have two arrays one copy to sort off and the array you want to sort.

with a lambda:

String[] strings = new String[]{"string1", "string2", "string3", "string4"};
final int[] ints = new int[]{100, 88, 92, 98};

final List stringListCopy = Arrays.asList(strings);
ArrayList sortedList = new ArrayList(stringListCopy);
Collections.sort(sortedList, (left, right) -> ints[stringListCopy.indexOf(left)] - ints[stringListCopy.indexOf(right)]);

Or with Comparator:

String[] strings = new String[]{"string1", "string2", "string3", "string4"};
final int[] ints = new int[]{100, 92, 88, 98};

final List stringListCopy = Arrays.asList(strings);
ArrayList sortedList = new ArrayList(stringListCopy);
Collections.sort(sortedList, Comparator.comparing(s -> ints[stringListCopy.indexOf(s)]));