CODEWITHSUNDEEP
javaswingjcombobox
jorge_barmat
jorge_barmat

Reputation: 15

How to Add Item in a JComboBox

I have a JComboBox and a class named clsPais:

public class clsPais {

private long id = 0;
private String nombre = "";

    public long getId() {
        return id;
    }
    public void setId(long id) {
        this.id = id;
    }
    public String getNombre() {
        return nombre;
    }
    public void setNombre(String nombre) {
        this.nombre = nombre;
    }
@Override
    public String toString() {
        return nombre;
    }

}

In my JFrame code I put:

clsPais p1 = new clsPais();
p1.setId(1);
p1.setNombre("ARGENTINA");

clsPais p2 = new clsPais();
p2.setId(2);
p2.setNombre("BRASIL");

cmbPaises.removeAllItems();
cmbPaises.addItem(p1);

Here, i have an error, telling me "incompatible types: clsPais canot be converted to string". The addItem from my JComboBox only accept String parameter. What can I do?

Thank you

Upvotes: 0

Views: 3926

Answers (2)

unlimitednzt
unlimitednzt

Reputation: 1065

You need cmbPaises to be of type clsPais rather than String:

JComboBox<clsPais> cmbPaises = new JComboBox<>();
cmbPaises.addItem(p1);
cmbPaises.addItem(p2);

BTW, in Java, the convention is that class names begin with caplital letters.

Upvotes: 1

J-J
J-J

Reputation: 5871

you can do it as follows..

    JComboBox<ClsPais> comboBox = new JComboBox<>();

    clsPais p1 = new clsPais();
    p1.setId(1);
    p1.setNombre("ARGENTINA");

    clsPais p2 = new clsPais();
    p2.setId(2);
    p2.setNombre("BRASIL");


    comboBox.addItem(p1);
    comboBox.addItem(p2);

Upvotes: 1

Related Questions