I'm creating a very simple login program using JOptionPane i want the user to create his/her own username and password and if it's done he/she will proceed to log in but the system will check if the u...

I'm so confused right now because I don't know how I can add the items and the quantity of the items that's in a drop down list. Can someone help me even with just an idea how to do it? Thank you in a...

I am wondering if there is anyway to center my "Overwrite" option/button within the JOptionPane call. Currently, the button automatically styles to the right side of the modal like so: The ...

package dataindi; import javax.swing.JOptionPane; public class NewClass { public static void main(String[] args) { int id; id = Integer.parseInt(JOptionPane.showInputDialog("...