I am just getting started in Java and I'm having issues programming a login which needs to use a Jframe. Here's the code:
package tp_libreria;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class menu extends JFrame {
private JTextField f_usuario, f_pass;
private JButton b_ingreso;
private String usuario = "java", pass = "entrar";
private Usuario[] usuarios = new Usuario[5];
usuarios[0] = new Usuario("admin", "admin");
public static void main(String args[]){
menu application = new menu();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
}
}
The problem is that I don't know where to initialize the array usuarios, it gives me the following error.
Cannot make a static reference to a non-static field usuarios
Here's the class code:
package tp_libreria;
class Usuario {
private String usuario;
private String pass;
// constructor
public Usuario(String usuario, String pass) {
this.usuario = usuario;
this.pass = pass;
}
// getter
public String getUsuario() { return usuario; }
public String getPass() { return pass; }
// setter
public void setUsuario(String usuario) { this.usuario = usuario; }
public void setPass(String pass) { this.pass = pass; }
}
try this
public class menu extends JFrame {
private JTextField f_usuario, f_pass;
private JButton b_ingreso;
private String usuario = "java", pass = "entrar";
private Usuario[] usuarios = new Usuario[5];
public static void main(String args[]) {
menu application = new menu();
application.usuarios[0] = new Usuario("admin", "admin");
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
}
}