10
Dec
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
System.out.println("[14,12,9,15,17,21,23,5,8,25]");
System.out.println("Enter a number that contains in the given array:\n");
Scanner scanner=new Scanner(System.in);
int value=scanner.nextInt();
int[] numbers={14,12,9,15,17,21,23,5,8,25};
int index=findArrayIndex(numbers,value);
System.out.println("Array index is: "+index);
}
public static int findArrayIndex(int[] arr, int n){
for(int i=0;i<arr.length;i++){
if(arr[i]==n){
return i;
}
}
return -1;
}
}Output:
[14,12,9,15,17,21,23,5,8,25]
Enter a number that contains in the given array:
17
Array index is: 4
[14,12,9,15,17,21,23,5,8,25]
Enter a number that contains in the given array:
55 //if input number which is not listed in array
Array index is: -1
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