error message: In the main(String[]) method, use a call to the Arrays.binarySearch(int[], int) method. Although i use Arrays.binarySearch(int[], int) ???

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Implement the main(String[]) method, which displays true if the element is contained in the passed array, otherwise false.
The array variable should not change the position of its elements.

To search for an element in an array, you need a binary search. To do this, use the static Arrays.binarySearch(int[], int) method of the Arrays class.
In the first argument, pass a sorted array to be searched. The second parameter is the element to be searched for.
The Arrays.binarySearch(int[], int) method returns the index of the query element, if such an element exists in the array.

You can use the Arrays.sort(int[]) method to sort the array.
During testing, the values of the variables in the Solution class will be different.

Requirements:

In the main(String[]) method, do not change the position of the elements in the array.
When the main(String[]) method is called, display true if the value of the element variable is contained in the array.
When the main(String[]) method is called, display false if the passed element is not contained in the array.
In the main(String[]) method, use a call to the Arrays.binarySearch(int[], int) method.

package en.codegym.task.pro.task05.task0519; import java.util.Arrays; /* Is anyone there? */ public class Solution { public static int[] array = {9, 8, 7, 6, 5, 4, 3, 2, 1}; public static int element = 5; public static void main(String[] args) { //write your code here int[] tmpArray = Arrays.copyOfRange(array, 0, array.length); Arrays.sort(tmpArray); int idx = Arrays.binarySearch(tmpArray, element); boolean contained = idx >= 0; System.out.println(contained); } }

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Lisa L

Level 47 , Nuremberg, Germany

20 June 2022, 15:50

solution

have you tried copyOf instead of copyOfRange? I know the result is the same but sometimes CG requires some certain path to the solutionl

Maksim Krasnov

Level 42 , Kyiv, Ukraine

20 June 2022, 18:27

Thank you. The test passes.

Guadalupe Gagnon

Level 37 , Tampa, United States

20 June 2022, 15:08

Looking at the comments on the task page it looks like this task is bugged.