Java tutorial
import java.util.Arrays; public class Main { public static void main(String[] args) { double doubleArray[] = { 1.3, 2.1, 4.7, 5.3 }; Arrays.sort(doubleArray); double searchValue = 4.7; System.out.println(Arrays.binarySearch(doubleArray, searchValue)); searchValue = 3.33; System.out.println(Arrays.binarySearch(doubleArray, searchValue)); } }