import java.util.Arrays;
import java.util.Comparator;
public class MainClass {
public static void main(String[] args) {
String[] s = { "map", "pen", "marble", "key" };
Othello o = new Othello();
Arrays.sort(s, o);
for (String s2 : s)
System.out.print(s2 + " ");
System.out.println(Arrays.binarySearch(s, "map"));
}
static class Othello implements Comparator<String> {
public int compare(String a, String b) {
return b.compareTo(a);
}
}
}
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