This document discusses constructors and methods in classes. It defines public and private as public being accessible by any class and private only being accessible within the same class. It also defines a constructor as a method that runs immediately after object creation, has the same name as the class, and can initialize attributes. An example constructor is provided that initializes empty string values for attributes upon object creation of the Vendedor class.

1. Class 4
 Exposure: Constructors and Methods Group #5
 Public
 Prívate
 Class instantiation
 Constructor
Constructors and Methods
Public.- can be accessed at any class
public int numero;
public int promedio;
Private.- the same class can access this method
private String nombre;
private float precio;
Class instantiation
Constructor.- is a method that starts immediately after object creation. Has the
same class name.
public class Vendedor {
Scanner opt = new Scanner(System.in);
String Nom;
String Apellido;
String telefono;
Vendedor(){
this.Nom="";
this.telefono="";
this.telefono="";
}