Output array I don't know what it is?

I have this code and when I run it I get this: [I@2c7b84de.

Can someone explain to me why I get that?

public class EJer22 {
    public static void main(String[] args){
        int[] numeros = { 50, 21, 6, 97, 18 };
        System.out.println(numeros);

    }
    public static int[] pruebas (int[] P){
        int[] S = new int[P.length];
        if(P.length < 10){
            System.out.println("Hay mas de 10 numeros");
        } else {
            for(int i = 0; i < P.length; i++){
                //S = P[i];
                if(10 >= P[i]){
                    S[i] = -1;
                    
                }else{
                    S[i] = P[i];
                }
            }
        }
        return S;
    }
}

>Solution :

numeros is an int array, which does not automatically serialise to a String. You are seeing the object reference value, rather than the contents.

If you convert it to a List, you will see the individual elements as the toString() method of List will do this for you

public static void main(String[] args){
    List<Integer> numeros = Arrays.asList(50, 21, 6, 97, 18 );
    System.out.println(numeros);
}

The pruebas method is never called but I guess that is not relevant to the question you’ve asked?