Can't import Java.util.arraylist

Question

I've done everything but i just don't know why it is not even accepting it...this is my code i think that it doesnt have nothing to do with it but ill send it anyways. Any help is appreciated!

public class Exercicio2 {
    public static String mcaracteres(String[] array) {
        int maxLength = 0;
        String maiscaracteres = null;
        for (String s : array) {
            if (s.length() > maxLength) {
                maxLength = s.length();
                maiscaracteres = s;
            }
        }
        return maiscaracteres;
    }
    public static void main(String[] args) {
        Scanner scn = new Scanner(System.in);
        String[] array = new String[10];
        System.out.println("Insira 10 linhas");
        for (int i = 0; i < array.length; i++) {
            array[i] = scn.nextLine();
            if (array[i].equals("")) break;
        }
        int choice = 0;
        while (choice != 6)   {
            System.out.println(".......................MENU........................");
            System.out.print("Opcao: ");
            choice = scn.nextInt();
            System.out.println();
            if (choice > 6 || choice < 0) {
                System.out.println("Escolha invalida.Tente uma opcao entre 1 e 6");
            }
            if (choice == 1) {
;                   String maiscaracteres = mcaracteres(array);
                      System.out.format("Linha com mais caracteres: '%s'\n", maiscaracteres);
            }
            else if (choice == 4) {
                System.out.println("Insira a linha que deseja verificar");
                Scanner sc = new Scanner(System.in);
                String verify = sc.next();
                if (array.contains(verify))
                    System.out.println(verify + " já existe.");
                else {
                    System.out.println("A linha ainda nao existe");
                }
            }
        }
    }
}

I'm sorry if this is a dumb question but i'm new to java and i'm trying to figure it out little by little

Answer 1

I believe the problem is not an import. You are calling contains() on an array and not on a list. Please replace

array.contains(verify) 

with

Arrays.asList(array).contains(verify)

and you should be ok