Java class development

I am trying to do the exercise that they have sent us in class, I put the statement.

In the Runner class:

Attributes(private)

name: partner name (string)

nif: partner nif (string)

age: runner's age (integer numeric value)

numDorsal: runner number (integer numerical value). static attribute.

dorsalActivo: that indicates if the bib is active (boolean variable)

numMinutes: number of minutes it took the runner to complete the marathon. When creating each object of this type, it will be initialized to 0. Throughout the program it will be taken into account that the time cannot be less than 0 and the marathon cannot last more than 12 hours.

Methods (accessed from the same package)

· Parameterless Runner object constructor.

· Constructor of objects Constructor with three arguments that gives value to the first attributes.

· Runner object constructor with two arguments, nif and age, which you always name “Guest”.

· Corridor Object Copy Constructor.

My question: Do I have to make four builders 3 runner and one builder? How do I get to do all four options, knowing that I can't do multiple constructors with parameters? At least the program fails me.

I leave you my code:

public class Corredor {
    private String nombre;
    private String nif;
    private int edad;
    private static int numDorsal;
    private boolean dorsalActivo;
    private int numMinutos;

    public String getNombre(){
        return nombre;
    }
    public void setNombre(String nombre){
        this.nombre=nombre;
    }
    public String getNif(){
        return nif;
    }
    public void setNif(String nif){
        this.nif=nif;
    }
    public int getEdad(){
        return edad;
    }
    public void setEdad(int edad){
        this.edad=edad;
    }
    public int getNumdorsal(){
        return numDorsal;
    }
    public void setNumdorsal(int numDorsal){
        this.numDorsal=numDorsal;
    }
    public boolean getDorsalActivo(){
        return dorsalActivo;
    }
    public void setDorsalActivo(boolean dorsalActivo){
        this.dorsalActivo=dorsalActivo;
    }
    public int getNumMinutos(){
        return numMinutos;
    }
    public void setNumMinutos(int numMinutos){
        this.numMinutos=numMinutos;
    }
    //sin argumentos
    public Corredor(){

    }
    //con argumentos
    Corredor(String nombre, String nif, int edad, int numDorsal, boolean dorsalActivo, int numMinutos){
        this.nombre=nombre;
        this.nif=nif;
        this.edad=edad;
        this.numDorsal=numDorsal;
        this.dorsalActivo=dorsalActivo;
        this.numMinutos=numMinutos;
    }

    //con los tres primeros arguemntos y aqui es donde me da fallo dado que la clase corredor está declarada
    public Corredor(){
        nombre="Pepe";
        nif="740325679E";
        edad=57;
    }
}