how can i show data of each linkedlist element?

Question

public class Alimento {

private String nome;
private int quantità;
private String scadenza;
private String tipo;


Alimento(JTextField txt_nome, JTextField txt_quantità, JTextField txt_scadenza, JTextField txt_tipo) {
    setNome(txt_nome.getText()); 
    setQuantità(Integer.parseInt(txt_quantità.getText()));
    setScadenza(txt_scadenza.getText());
    setTipo(txt_tipo.getText());

    /*System.out.println(getNome());
    System.out.println(getQuantità());
    System.out.println(getScadenza());
    System.out.println(getTipo());*/

}

public String getNome(){
    return nome;
}
public int getQuantità(){
    return quantità;
}
public String getScadenza(){
    return scadenza;
}

public String getTipo(){
    return tipo;
}

public String setNome(String name){
    return nome = name;
}

public int setQuantità(int quant){
    return quantità = quant;
}

 public String setTipo(String type){
    return tipo = type;
}

public String setScadenza(String scad){
    return scadenza = scad;
}

}




public class Dispensa{

LinkedList<Alimento> dispensa = new LinkedList<>();

public Dispensa(){}

public void add(Alimento alimento){
  dispensa.add(alimento);
}
public void showList(){
for (int i = 0; i < dispensa.size(); i++)
    System.out.println(dispensa);
}
}

when i try to display the elements i have the numeric adress of them as (mykitchen.Alimento@10a6cf9e). i would display something like:

name:...

quantità:...

for each element that i have into the linked list

thank you!

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the [How to Ask](https://stackoverflow.com/help/how-to-ask) page for help clarifying this question. — Gerardo BLANCO, Feb 27 '18 at 18:30

score 1 · Accepted Answer · edited Feb 27 '18 at 22:08

It's normal to get the object reference like that mykitchen.Alimento@10a6cf9e because you call a toString method for an object in the line System.out.println(dispensa);, the dispensa object is an List of alimento object, So you have to get the alimento object in the loop using dispensa.get(index), the call the getter that you want. Like :

public void showList(){
for (int i = 0; i < dispensa.size(); i++)
  {
    Alimento  alimento = dispensa.get(i);
    System.out.println(alimento.getNome());
  }
}

You can also define the toString() for Alimento in the class so you wouldn't have to call getNome().

how can i show data of each linkedlist element?

1 Answers1