₦airaland Forum

75k give me a call 08140017630

100k u contact me 07080034760

seadog2000:
Oga U r still using Swing? Haha upgrade cos now GUI development in Java MUST BE JAVAFX


Also in modern technology world the web will soon overshadow desktop platform. So maybe u should start thinking of cloud based solutions

And you u still refer us Nigerian to cloud base computing with little or no technology to do such. Desktop applications can never go just be good which ever one u find urself. Good luck

kudaisi:
I know this is outside the scope of your question and since I don't know how your application works I shouldn't be too quick to judge.

But I'm concerned about how you implemented the Cart functionality in your application, considering it requires you to pull up entities from a JTable or JTextArea when you need to get the sum total. For one, I see performance issues if your application gets bigger (remember Big O notation, considering the cost of looping every time you need a total), secondly your implementation will eventually make you code hardly reusable. For me, the idea would be that I should be to use the same Cart class in a Java SE or Java EE application with little or no changes (which can be achieved by inheritance), hence I would avoid tying items directly to my view.

Correct me if I am wrong, but isn't the normal workflow to have a list of entities somewhere, then use it as a model for a view component where required rather than adding items to the view directly.

For example, if I was going to implement something like that, I would probably have a class Cart that defines a method void addItem(ICartItem item), void removeItem(ICartItem item) and a int getSumTotal(), subsequently, each time I want to add an item to a cart I will simply call the addItem method which will in turn add the item to a list in the Cart and add the cost of that item to the a sumTotal variable within the Cart class, while the removeItem method will do the reverse. This way I have my sum total on-the-fly anytime I need it at no extra computational cost.

So, to display in a JTextArea for example I would simple override the toString method (native to all Java classes) of the Cart class so that I can easily update the JTextArea by doing someTextArea.setText(someCart) and for the JTable I would then use the list of items as a model for the a JTable such that updating the list, updates the table.

PS: These are just my opinions, it doesn't make it any better that what you might have implemented, but given the facts... , I hope you find this helpful.

. Tanx alot

Price

Am so much happy about this very article cuz I didn't know that we stil able men of God that still hold unto the truth. You are the real prophet of our time. God bless

You people don't have anything to contribute to average Nigerian. U promise to make dollar equivalent to 1 Naira. So where we are going to now

Real embezzlement of public funds.. keep it up .Nigeria is going no where under this government

Payment on delivery outside the state?

Your best price?

Your best price sir?

80k Sir

70k chat me on WhatsApp for better deal 08140017630

Foolish people, u haven't pay the once you being owning so far and u talking of increasing it therefore giving ur workers high hope that will never come to reality !! Am not a supporter of any political party before u start criticising me... But Governor of Abia state has failed God and humanity as a whole

Payment on delivery outside state using courier is it applicable?

Is the price negotiable?

100k Sir

Payment on delivery is it applicable outside the state?

Your location?

Plz I really need iPhone 8, my location is portharcourt and I will need someone close by because it should pay on delivery

Do u accept payment on delivery outside the state using courier?

[quote author=Predstan post=78933043]We can use a Trusted escrow on Nairaland... you send him money. I ship to you. When u receive it and meets ur expectations. U ask escrow to release money to me [l/quote]
I think courier will be better

Do u accept payment on delivery outside Lagos?

Your location plz?

lincsnuel:
Create a new Integer object, parse the numbers (values) in the TextArea which are in String to an "int" by using the parseInt(String s) method. After parsing them to "int" (or double... i.e if the values are not integers e.g 123.45), then, you can add them together in a new "int" or "double" variable. Hope you get my point

Tanx bro, I used JTable instead of TextArea and I wrote a functio/method that loop through the rows of JTable and sum it together

stanliwise:
Aside from long code, did it work?
Checkout topics like
Java Event
All you need to do is to have an event listener that react and collate button value when total is clicked.

Tanx alot I have gotten the solution

Pls I have some kind of difficulty in this java code.
Am building an inventory system that requires random multiple selections of checkboxes. I did it in a such a way that once I click on any checkboxes the item and the price will display on TextArea(Cart) . I want if I clicked on the button "TOTAL" the total amount amount of the items selected from the checkboxes will display on the TextArea (Cart) . So I just need a method/function that will get the information(prices)from the TextArea (Cart), sum it all and display my Total .
I have tried doing it shaa but my code is too long although I couldn't implement the one that will just loop through My Textarea

Is it possible for 170k?

NL u just go about gossiping just to make headlines news

Indeed u have achieved success against boko haram!!!
Am not surprise cuz I don't u actually stop what u started

Chat me on WhatsApp 08140017630

am interested, chat me on WhatsApp 08140017630