Is a cast int the same as an ordinary int

Question

I'm trying to insert a value into a JDBC, I'm getting a value from a combo box in which I have to cast to an int but the query isn't recognizing it as an int? It prints out to console as a number.

Here's a sample of code that best replicates the problem.

I've tried turning the input to a string and then parsing it, but it still won't recognize it. Its like it won't recognize the int. I'm a bit stumped. Thanks

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class AddingItemToComboBox implements ActionListener{

    JButton click = new JButton("Click me");
    JComboBox qty = new JComboBox();

    public AddingItemToComboBox(){
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel panel1 = new JPanel();
        panel1.setLayout(new FlowLayout());
        panel1.setSize(500,500);   

        click.addActionListener(this);
        qty.setBounds(10,270, 150, 20 );
        qty.setSize(80,30);
        qty.addItem(1);
        qty.addItem(2);
        qty.addItem(3);
        panel1.add(qty);
        panel1.add(click);
        frame.add(panel1);

        frame.setSize(300, 200);
        frame.setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {

        if(e.getSource() == click){

            int quan  =  (int)qty.getSelectedItem();    
            System.out.println(quan);

            //Connection to database
                    // Here is the problem "quan"
            con.insertProduct(qaun);



        }

    }
    public static void main(String[] args){

        AddingItemToComboBox aic = new AddingItemToComboBox();
    }

}

Error: Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problem: qaun cannot be resolved to a variable

Answer 1

Your variable is quan wheras you are using qaun

Look at the con.insertProduct(qaun);

The compile error shows you this clearly

Error: Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problem: qaun cannot be resolved to a variable

Answer 2

It prints out to console as a number

This code is the same as

int quan  =  (int)qty.getSelectedItem();    
System.out.println(quan);

is the same as

System.out.println(Integer.toString(quan));

There is no way to print a number as an int as your console can only display characters so it must turn it into text.