Create Object with one of constructor's parameter

Question

so I'm having a lot of trouble understanding how this works...

public class Arbitros_modelo {

public Arbitros_modelo(String nombre, String nacionalidad, String posicion) {


    // where my  idea   is to create objects with Constructor(String nombre)
            // eg Arbitros_modelo(esteban, colombiano, lateral)

         Object[]  nombre = {nacionalidad, posicion};

}

but this gave me error,this is the idea, but it does not work probbly not understanding the concept so can someone explain to me o give me an article where i can learn this ?... so did some researching and found this:

public class Arbitros_modelo {


public Arbitros_modelo(String nombre, String nacionalidad, String posicion) {


Object[] Arbitros_modelo.class.getConstructor(Arbitro_modelo.class).newInstance(nombre) = {nacionalidad, posicion}  

}

I know this is VERY wrong but just can't understand how to implement this correctly, please help. thanks !

you can have global String variables in your class and set them in your constructor — Faran Yahya
– Faran Yahya, Commented Apr 16, 2014 at 13:40

Faran Yahya · Accepted Answer · 2014-04-16 13:45:24Z

1

You can do it like this.

public class Arbitros_modelo { 
private String nombre;
private String nacionalidad;
private String posicion;

public Arbitros_modelo(String nombre, String nacionalidad, String posicion) {
       this.nombre=nombre;
       this.nacionalidad=nacionalidad;
       this.posicion=posicion;
}

Simple

answered Apr 16, 2014 at 13:45

Faran Yahya

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Comments

pisek · Accepted Answer · 2014-04-16 13:48:36Z

0

You are mistaking some parts of OOP. You must first implement a class which should be able to contain Your data (Person for example) which should have fields (nombre, nacionalidad and position).

Then You probably would like to create a Person object with given parameters using constructors.

The Object phrase is not a phrase for class definition. It is a global java class from which all other classes extend.

Still I believe some more information about what You would actually like to do here is necessary.

What is more try revising: http://docs.oracle.com/javase/tutorial/java/javaOO/constructors.html and http://www.javaworld.com/article/2076204/core-java/understanding-constructors.html

answered Apr 16, 2014 at 13:48

pisek

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Alexey Malev · Accepted Answer · 2014-04-16 13:43:34Z

0

You are using the same variable name twice, first time as constructor argument:

public Arbitros_modelo(String nombre, String nacionalidad, String posicion) {

Second time as local variable:

Object[]  nombre = {nacionalidad, posicion};

Just rename it in one of these places and you should be fine.

answered Apr 16, 2014 at 13:43

Alexey Malev

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Elliott Frisch · Accepted Answer · 2014-04-16 13:43:41Z

0

If I understand what you're trying to do, then you can use this with a constructor,

public Arbitros_modelo(String nombre) {
  super(); // <-- be explicit
  System.out.println("Constructor one");
  this.nombre = nombre;
}
public Arbitros_modelo(String nombre, String nacionalidad, String posicion) {
  // Object[] Arbitros_modelo.class.getConstructor(Arbitro_modelo.class).
  // newInstance(nombre) = {nacionalidad, posicion}  
  this(nombre);
  System.out.println("Constructor two");
  this.nacionalidad = nacionalidad;
  this.posicion = posicion;
}

answered Apr 16, 2014 at 13:43

Elliott Frisch

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