JComboBox Info

[mDennis10]

I am writing an application that the user takes the amount of items they want from a comboBox. I then want to parse/convert back the content to an integer the problem that i am having is that content i am getting is of type Object and i don't know how to convert it to int. Can some one direct me with what to do.


Ok, i'm using a JComboBox component that I pass in a array of type string. which looks like this

private String [] amountOfTicket =  {"0","1","2","3","4","5","6","7","8","9","10"};
private JComboBox adult;

public void someFunction ()
{
     adult = new JComboBox (amountOfTicket);
     adult.setEditable(false);
     adult.setSelectedItem (amountOfTicket[0]);

    adult.addActionListener (new EventHandler ());
}

What i want is that when the user selects on item a event is generated that gets the value the user selected so i can use it to do some calculations. The problem i am having is that i use the .getSelectedItem () method that returns on Object type which i don't know how to covert to an integer. So can u tell me how to convert it or how to get the data a different way

[Fubarable]

You'll need to tell us more. What is the original type of the item? Integer? If so then cast to this. If not, again, please don't hide the details of your problem if you need our help.

[mDennis10]

Ok, i'm using a JComboBox component that I pass in a array of type string. which looks like this

private String [] amountOfTicket =  {"0","1","2","3","4","5","6","7","8","9","10"};
private JComboBox adult;

public void someFunction ()
{
     adult = new JComboBox (amountOfTicket);
     adult.setEditable(false);
     adult.setSelectedItem (amountOfTicket[0]);

    adult.addActionListener (new EventHandler ());
}

What i want is that when the user selects on item a event is generated that gets the value the user selected so i can use it to do some calculations. The problem i am having is that i use the .getSelectedItem () method that returns on Object type which i don't know how to covert to an integer. So can u tell me how to convert it or how to get the data a different way

[Fubarable]

getSelectedItem() will return one of the Objects in the combobox model -- but what did you fill it with? Strings! So what is returned is of course a String -- makes sense?

Two solutions that I know of:

1) Cast the Object to String and call Integer.parseInt(...) on it, or
2) Don't fill your combobox model with Strings but instead fill it with Integers (not ints), and then you can use the returned object (an Integer) directly.

Next time, please give us the information that you have in your second post in the original post as it will save both you and us much time and hassle. Please read my link below on how to ask smart questions for more tips that will help us help you.

[mDennis10]

getSelectedItem() will return one of the Objects in the combobox model -- but what did you fill it with? Strings! So what is returned is of course a String -- makes sense?

Two solutions that I know of:

1) Cast the Object to String and call Integer.parseInt(...) on it, or
2) Don't fill your combobox model with Strings but instead fill it with Integers (not ints), and then you can use the returned object (an Integer) directly.

Next time, please give us the information that you have in your second post in the original post as it will save both you and us much time and hassle. Please read my link below on how to ask smart questions for more tips that will help us help you.

I Tried your second example but the compile is telling me can't covert from on object to int.

[Fubarable]

I Tried your second example but the compile is telling me can't covert from on object to int.

Again Integer, not int, and again, you're telling us bits of your problem but not telling us the meat -- such as showing us the code and the actual error message.

Please, read the link on how to ask smart questions.

[Fubarable]

Again, you may wish to show us your latest code attempt and the error message, else we can't tell what you did wrong.

[mDennis10]

Integer amountOfTicket = {0,1,2,3,4,5};//new declaration
int a =(int)adult.getSelectedItem();//get data from text field
cannot cast from Object to int

is whats happening now

[mDennis10]

OOOOOOOOOO is see the problem now. i just saw the problem it is what u said, it should have been (Integer) and not (int). thanks a million