Error "required int" when executing code

Question

I made this small program, where I want you to loop, while the user chooses to register more messages.

The error, after compiling the code, says:

required:int
found: no Arguments
Reason: actual and formal argumente lists differ in lenght.

Here is the code snippet:

/*
 * Class do registo de mensagens
 */
import java.util.*;
public class RegistoDeMenssagem1 
{           
   public static void main(String[] args) 
   {  
       System.out.println("Bem vindo Utilizador"); 
        System.out.println("Introduza o número da recarga"); 
        Scanner kb = new Scanner(System.in);
         int Recarga = kb.nextInt();  //criar o mêtodo que verifica se trata-se de int.
        String resposta;
        boolean sn;

     {
    System.out.println("Têm mais recarga para registar?");   
    System.out.println("responda `S´ para continuar ou `N´ para terminar");
     resposta = kb.nextLine().trim().toLowerCase();
    if (resposta.equals("s")) 
        {
            sn = true;
            System.out.println("Introduza o número da recarga"); 
            Scanner kb2 = new Scanner(System.in);
            int MaisRecarga = kb.nextInt(); //Aqui criar o exception handler que verifique tratar-se de int.
        System.out.println("Têm mais alguma recarga para registar?");   

    } 
    else if (resposta.equals("n"))
        {
            System.out.println("Obrigado, atê a próxima!");
                System.exit();
    }
     }

   }
}

Answer 1

The static method call System.exit(int status) requires that a type be passed int as argument, which identifies the type of execution termination status.

If the breakup was normal(not because of some exception or other unforeseen situation), you can pass 0 as argument. If there was an error, you can pass another value other than zero.

Change this line to System.exit(0);, since by your code, the problem is normally ending.

---

References:

• Difference in System. Exit(0) , System.Exit(-1), System.Exit(1 ) in Java

• Class System(Documentation)

Answer 2

try this:

System.exit(0);

it waits for an int parameter to run

Look:

https://docs.oracle.com/javase/7/docs/api/java/lang/System.html