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I’m making a code where it involves MVC. To get past the View to the Controller I’m not having problems, but when will I pass the Controller to the Model I can’t do it, the variable is imported, but with no value.
View:
package bancomvc;
public class View {
public static int valor;
public static String nome;
public static double saque;
public static double limite;
public static int opcao;
public void exibeMenu() {
System.out.println("\t Escolha a opção desejada");
System.out.println("1 - Depositar");
System.out.println("2 - Sacar");
System.out.println("3 - Sair\n");
System.out.print("Opção: ");
Scanner scan = new Scanner(System.in);
opcao = scan.nextInt();
System.out.println("Digite o valor:");
valor = scan.nextInt();
}
public void setOpcao(int opcao) {
this.opcao = opcao;
}
public int getOpcao() {
return opcao;
}
public void setValor(int valor) {
this.valor = valor;
}
public int getValor() {
return valor;
}
}
Controller:
package bancomvc;
public class Controller {
public static int recValor;
public static int opc;
public void Valores() throws ClassNotFoundException, SQLException {
View cliente = new View();
opc = cliente.opcao;
recValor = cliente.valor;
System.out.println(opc);
}
public void setOpc(int valor) {
this.opc = valor;
}
public int getOpc() {
return opc;
}
public void setValor(int valor) {
this.recValor = valor;
}
public int getrecValor() {
return recValor;
}
Model:
package bancomvc;
public class Model {
public static int op;
public static int val;
public static int Saldo;
public void execução() throws ClassNotFoundException, SQLException {
Controller ctrl = new Controller();
op = ctrl.opc;
val = ctrl.recValor;
System.out.println(op);
}
Bancomvc(Main class):
package bancomvc;
public class BancoMVC {
public static void main(String[] args) throws IOException, ClassNotFoundException, SQLException {
View ver = new View();
ver.exibeMenu();
Model mod = new Model();
mod.execução();
Controller cont = new Controller();
cont.Valores();
}
}
The Get and Set I am probably using improperly, if someone can show me the path of the stones I thank :) (I am still beginner).
Some doubts: Your control and model classes are missing the last keys, did that occur when you pasted the code here? - In the vision class you are using a
Scanner
without importing it. Java does not know what a "Scanner" until you point out which package it is in (in case,java.util
), was an oblivion?– Renan Gomes
No, I wiped the code a little bit with some things that would not be necessary here, you may notice that I removed all imports, the code contains no errors, but the result in the variable model is null...
– Matheus Lopes
@Matheuslopes If the answer below has served you, mark it as accepted so that Dener can earn points with it.
– Victor Stafusa