I would like to thank Ezzaral and peter_budo for helping me bettter understand java. I learned more from you guys in just a short time than I did from my class and instructor.
Thank you very much.

My brain is in shock or something because I have read so many tutorials and what-knot that all the information is in gridlock and scrambled. I am so lost. if you only knew how long that I have...

Here is my code again, im not reseaving any errors but the delete, modify buttons do not do what they are needed to do, and the save and search buttons which i have not added yet. here is the code:
...

I'm sorry, I cant think strait from looking at a computer screen for 20 hours.

the save button needs to save the inventory to a C:\data\inventory.dat file.

Can some one give me some advisee as to what I am doing wrong. I knoow its going to be something simple that I'm overlooking, ive been workinng onn this for the last 4 days and I cant think strait...

Okay, I got the add button to work. all the buttons work except the delete, modify, and the save and search buttons which i have not added yet. here is the code:

import java.awt.*; //import all...

Now I am getting these error:

Exception in thread "main" java.lang.NullPointerException
at inventoryi.InventoryMain.showGUI(InventoryI.java:94)
at...

I am going crazy from trying every thing I can think of, but i'm not gona give up I'm gona figure this out even if it kills me. lol maybe I need some sleep. lol

I have been paying attention, its just that I am not getting feedback from my instructor. I have learned more from you guys in the past couple of days than I have learned this hole class. thank you...

still not working right.
here is the part of code that I changed:

// assign actionListener and actionEvent for each button
jbtAdd.addActionListener(new ActionListener()
{
...

Thank you for the help, I will do what you suggested. I still have a save and a search button to add but I am just doing them a few at at time so I can understand what I'm doing wrong. again, thank...

I finaly got my buttons to work and now I have added 3 more buttons which are not working and I added them the same way the other buttons that are working were added. the code compiles and runs...

Thank you very much for all your help.

I did what you suggested and now I get these errors:

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: javax.swing.JButton cannot be cast to javax.swing.JComboBox
at...

the next button needs to navagate to the next item when pushed and the previous button needs to navagate to the previous item and so on. The buttons just print out that they have been pushed and...

i want to thank both of you for helping me.

ok, this is what I have done but the buttons still do not change the inventory to the next, previous, or the others.

import java.awt.*;
import...

I'm sorry I am still new to this and do not understand the language yet, so I did not understand what you mean?

Thank you for the help, I was up all night last night and got my buttons to print out that they were pushed but I still can not get them to function so that if the list is at the first item and I...

Ok, I changes it so the action listener is added to the buttons that are being added to the panel annd still nothing. by the way, i want to thank you for all your help and advice, they are much...

here is the code with changes,


import java.awt.*;
import java.awt.event.*;
import java.text.NumberFormat; // used to format currency
import javax.swing.*;

import javax.swing.Icon;
import...

I forgot to say that my code compiles and runs showing the buttons but the buttons do nothing.

I need to
Modify the Inventory Program by adding a button to the GUI that allows the user to move to the first item, the previous item, the next item, and the last item in the inventory. If the...

You should post the fix for others that are having problems, thats what the forum is for.

so the "end if" statement at the end of the code is not a nesting level?

How many levels of nesting are there in this design?

X is an integer test score between 0 and 100.

input X

if (0 <= X and X < 49)
output "you fail"

else if (50 <= X and X < 70)