array binary search

package vetor;

import java.util.Arrays;

public class vetor {

    public static void main(String[] args) {

        int vet []= {3, 7, 6 ,1,  9 , 4, 2};

            for(int v:vet){
                System.out.print(v);
            }

        System.out.println("");
        int p = Arrays.binarySearch(vet, 1);
        System.out.println(p);
    }

}