import java.util.Arrays; public class Main { public static void main(String[] args) { float floatArray[] = { 1.2f, 2.1f, 4.7f, 5.3f }; Arrays.sort(floatArray); float searchValue = 4.7f; System.out.println(Arrays.binarySearch(floatArray, searchValue)); searchValue = 3.3f; System.out.println(Arrays.binarySearch(floatArray, searchValue)); } }