cannot find symbol

[Megs Maquito]

Hello,

Pls. help

heres the error:

PayCalc.java:34: cannot find symbol
symbol : constructor JComboBox(int[])
location: class javax.swing.JComboBox
dayOfMonth = new JComboBox(days);

  import javax.swing.*;
import java.awt.*;
import java.util.Calendar;
 
public class PayCalc {
 
    JFrame frame; 
    JComboBox monthBox;
    JComboBox dayOfMonth;
    
    Calendar cal = Calendar.getInstance();
    int [] days;
         
    public static void main(String [] args) {
PayCalc gui = new PayCalc();
gui.go();
    }
 
    public void go() {
frame = new JFrame("PayCalc");
 
String[] months = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
   "Aug", "Sep", "Oct", "Nov", "Dec"};
monthBox = new JComboBox(months);
monthBox.setSelectedIndex(cal.get(cal.MONTH));
frame.getContentPane().add(BorderLayout.NORTH, monthBox);


days = new int [cal.getActualMaximum(cal.DAY_OF_MONTH)];
for(int x = 0; x < days.length; x++) {
    days[x] = x + 1;
}
 
dayOfMonth = new JComboBox(days);
dayOfMonth.setSelectedIndex(cal.get(cal.DATE));
frame.getContentPane().add(BorderLayout.NORTH, dayOfMonth);
 
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300,300);
frame.setVisible(true);
 
    }
}
  

[Dan Patterson]

JComboBox does not have a constructor that takes an array of ints.

Constructor Summary
JComboBox()
Creates a JComboBox with a default data model.

JComboBox(ComboBoxModel aModel)
Creates a JComboBox that takes it's items from an existing ComboBoxModel.

ComboBox(Object[] items)
Creates a JComboBox that contains the elements in the specified array.

JComboBox(Vector<?> items)
Creates a JComboBox that contains the elements in the specified Vector.

You could always change your ints to int objects.

Are you using J2SE 5.0?, if so I thought autoboxing and autounboxing would take care of this, maybe somebody can speak to this, im not sure about it.

[Jeff Albertson]

Originally posted by Dan Patterson:

Are you using J2SE 5.0?, if so I thought autoboxing and autounboxing would take care of this, maybe somebody can speak to this, im not sure about it.

That's a bridge too far for autoboxing. It can do the following:

void f(int x) {
    g(x);
}
 
void g(Integer y){
}

but not this:

void ff(int[] x) {
    gg(x);
}
 
void gg(Integer[] y){
}