Java calculator app 🖩

Java simple calculator program w/ GUI
#Java #calculator #app
(NOT A COMPLETE CALCULATOR)

[@BroCodez]

import javax.swing.*; import java.awt.*; import java.awt.event.*; public class Calculator implements ActionListener{ JFrame frame; JTextField textfield; JButton[] numberButtons = new JButton[10]; JButton[] functionButtons = new JButton[9]; JButton addButton,subButton,mulButton,divButton; JButton decButton, equButton, delButton, clrButton, negButton; JPanel panel; Font myFont = new Font("Ink Free",Font.BOLD,30); double num1=0,num2=0,result=0; char operator; Calculator(){ frame = new JFrame("Calculator"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(420, 550); frame.setLayout(null); textfield = new JTextField(); textfield.setBounds(50, 25, 300, 50); textfield.setFont(myFont); textfield.setEditable(false); addButton = new JButton("+"); subButton = new JButton("-"); mulButton = new JButton("*"); divButton = new JButton("/"); decButton = new JButton("."); equButton = new JButton("="); delButton = new JButton("Del"); clrButton = new JButton("Clr"); negButton = new JButton("(-)"); functionButtons[0] = addButton; functionButtons[1] = subButton; functionButtons[2] = mulButton; functionButtons[3] = divButton; functionButtons[4] = decButton; functionButtons[5] = equButton; functionButtons[6] = delButton; functionButtons[7] = clrButton; functionButtons[8] = negButton; for(int i =0;i

[@vickysanth9653]

it would be more easy to understad for beginners like me if you go slower than usual.. because i don't understand many terms like "ActionListener", interfaces etc.. it's like new to me since I'm a beginner..

[@sidra3210]

Nice👍🔥

[@shokirovblog]

@@komaltandle465 LOL

[@agent47hitman75]

@NOA777 the method Double.parseDouble() casts a value to a double type value. the getText() method is used to get the text from the text field. So Double.parseDouble(txtfield.getText()) is actually casting the string values to a double type value of whatever is written in the rext field as we can't perform calculation with string type of values.

[@medjl6083]

@NOA777 The method parseDouble() of wrapper class Double, convert string to double.

[@deepeshsingh7717]

People are missing out on your amazing content. I am still learning Java, and your content helps a lot.

[@Bryysanity]

how are you now on your Java journey?

[@kylewc2286]

​@@Bryysanity Im curious too

[@StefaanMeeuws]

Most impressive. Very lucid coding. Congrats on teaching me a little more than I knew!

[@ashkaneghbali2702]

Came here straight after the 12 hour java tutorial. You are Awesome Bro. Keep 'em coming :)

[@EbbieMonch]

This tutorial was very good and even gave the challenge of fixing the Delete and Clear font size while keeping the rest of the numbers and functions font the same size

[@milesmiller9588]

Started practice with GUI's and this helped a lot!

[@AnsarAbbas-ed5ig]

off course same here bro😎

[@rasisulhubbi9316]

I just start learning java a month ago and a little bit confuse what to do, and i found your channel, its really help me to practice

[@zul_afluz]

Extremely helpful. Got my mini project done within 30 minutes referring your source code and guide. Thankkksss a lotttt ☺👏

[@ChinmayaHelchel]

Thank you @BroCode ☺ It was really up to the point !

[@Sorjen108]

This channel is so underrated I went through many tuto on youtube, but none of them was that good(sincerely), and this is in regards to any programming language This developer is Gold

[@bellabrink8610]

Amazing content as always man, thank you!

[@karllouiserito4777]

Thanks Bro I've learned something new today about Java especially that GUI.

[@mansinaidu]

bro this was really awesome .... my sir told it but it was too confusing but your program was clean and neat.... thank you so much .

[@alessandroformica6824]

Thank you, Bro! My prayers to the algorithm.

[@parkashkumar765]

You always perfect sir because your way of teaching is all the time perfect. Thank you so much sir.🥰

[@manthanpatki146]

well I am just commenting to support you because this video has been really helpful and i learnt more ways to use GUI in java.

[@365motivation.9]

Bro code,this is an amazing tutorial.Thank you Mann,you taught me alot here.

[@gyangaha109]

yo bro, love it thanks keep up the good work

[@mohammedhh6488]

Thank you very much for your assistance, you explained the code perfectly. Thumb Up.

[@suaddacic7728]

Thanks man You explain java better than my teacher

[@westonpeabody8010]

Thanks man. Believe it or not Ive been learning Java for years and until now Ive never actually wrote a fully functional calculator.

[@kemann3815]

Amazing video. That robotic laugh at the end got me 😂

[@kumarkelash4423]

you are really a great teacher you have made my life easy hahahah... God bless you sir

[@alirezahassanieghtedar5010]

Thanks a million , It was really nice and perfect for a beginner like me

[@slonbeskonechen8310]

Please, don't stop!!! More and more tutorials!!!!

[@Zito_from_OHIO]

the first sentence (Please, don't stop!!) remember me of a chat i had i chai 😏😏

[@BigBadBicycle]

I just begun with Java and made my own calculator like this. But after finishing and seeing this video, there is a lot of things I could do to definetly reduce my code size.

[@BlueOrcas]

I knew bro couldn't miss the negative sign before. He just cares for us bros and was testing us to grow stronger💪

[@orlandohunter2785]

Bro! These videos are awesome 👏

[@flyetimadtravel2157]

Bro You are legend. I am not a student I started learning JAVA to make my travel agency CRM.

[@alvydagr8108]

Wow even though your style is different, its super easy to understand and frankly, might make me do my calculator over just because It seems easier the way you did it

[@wolanus]

Another great video. Thanks!

[@grenadine9448]

Awesome content !

[@glebignites5278]

Thank you very much! It was very helpful.

[@athenkosinyombolo4275]

This was really helpful

[@ManuelErica]

You're the man. Good job!

[@ShahzadKhan-jg3hl]

Well defined. Thank you.

[@ahmedshifa]

Amazing content, thank you!

[@YaroMalik]

Bro the goat. Just finished learning Java with you and am building my first project with you too

[@ThunderHockeyTFL]

big thanks, very helpful video! subbed

[@secretchannel2151]

You are a true Bro. Thank you very much sir! Everyone keep commenting, liking and subbing to help the algorithm!

[@Respects103]

best yt for coding i learned many things from you thanks you so much bro code

[@mohdaman5928]

i truly learn a lot man thanks

[@B_lla008]

thanks for clean work it really help me !you are super good :)

[@omersond4891]

very helpful video. i understand for loops, if() more than before

[@meguminsatou1591]

man Thank you i really need this tutorial for my computer programming 2

[@FukSN]

Thanks Bro !! These tutorials are nice and quick to run through and show beginners like me how certain code works in a real app. I find this more valuable than just a lesson on certain things like arrays. I have noticed a slow down on the java vids, any chance of any new quick app tutorial vids?

[@biplobahmed6509]

no caption king. learned a lot from you . thnaks for the quality content

[@gabrielvalentin3106]

Excellent as always bro!

[@thebeginner613]

Polich machaa.. You are great 👏🏻👏🏻

[@fmsabisai]

This is an amazing tutorial, thumbs up. I would have loved to see how you handled division by 0. I have also noticed that its possible to have multiple dots in a number which would result in an error during calculations.

[@yasarcarel]

if(e.getSource() == decButton) { if(textfield.getText().contains(".")) { String temp = textfield.getText(); textfield.setText(""); for(int i=0;i

[@incarnateblizzard4874]

little bit late, but came across the tutorial right now. for multiple dots I did (most likely theres a better solution): if(e.getSource() == decButton) { boolean alrDec = false; for(int i = 0; i

[@konsti02]

this is great! Thank you

[@mahaalibrahim7934]

That’s was a lot of code thanks for your effort

[@user-mk8mj2pe2j]

Very cool! Helped me alot!

[@helpdesk9535]

Thanks for the help Big Bro!

[@ThePraQNome]

Great tutorial, thank you.

[@brianpelarez]

Good day BRO! Thanks so much I can now code my simple calculator, through your tutorial.

[@Baltazar_Gunar]

i just finish second book about java. A Beginners Guide and Complete Reference from Herbert SCHİLDT. I was looking for an example of real GUI software that wasn't beyond my knowledge and actually did something. So I could get an idea of ​​the general programming structure. Your video help me a lot about this. Thank you.

[@Sapocrate]

Thanks! (I appreciate also the 420 on the preview)

[@Dejuk22]

well done bro🙌 thank you!!

[@reo4465]

Thank you so much for making this wonderful vidoes ❤️

[@etude5942]

Thank you so much for the perfect explanation ❤❤❤❤😭

[@shibildas]

Bro, that was awesome ❤️

[@Ahmad-jc7by]

so enjoyable, thanks for this Man

[@djziomsuper]

Great video!

[@kampfer6375]

Very well explained 👍

[@user-qe5pk6ke3k]

awesome broo..keep rocking

[@letsgame108]

Thank you so much bro. this is really amazing

[@LiyaAi-fm9ec]

Very beautiful, Love it!

[@quikmath8071]

Awesome tutorial

[@noah77]

Cool, this is nice. Awesome video. And also, I have finished creating my AI ChatBot!!

[@BroCodez]

nice! Which app is it for?

[@JEE-nf1cv]

This was indeed Helpful brother Thanks for the tutorial

[@animegaming7116]

the package come back as error what to do

[@manasapanda9248]

Amazing video I really enjoy this as this is very useful in my program

[@user-ot2sn1cn3e]

great example. Thanks

[@Daniel78852]

Thanks man that helped a lot. Nw I see how Java works.

[@muhammadbsoul1459]

Thanks pro Very helpful video Keep going

[@coolboy.bladersshow9159]

Thanks bro. You helped me a lot.

[@divyakale1271]

Thanks Wonderful video ! This video is easy to understand and very helpful.

[@ryandavis710]

Great tutorial

[@rudranagariya8546]

Thank you so much bro you are the only best coder

[@ashnasanam217]

Underrated!

[@ritikrajput2894]

Wonderful Tutorial

[@raviratnakar3803]

You make it look very easy. Thanks Bro!

[@cutie3127]

Your amazing Content makes me to passionate about java more... I thought to left but ...

[@MatheusOliveira-me3rf]

thank you man!!

[@stanislavdimitrov1643]

Great, fantastic. It may seem a little but too advanced at the beginning, but you can try it and see:)

[@infotechlab]

hey bro! thanks a lot for this amazing content..

[@wolfhans2122]

thank you for your work.

[@Mia_sarahia_kit_official]

thank you so much bro code it help me a lot when i watch your vedio. love yah

[@ryanning4516]

awwwwwwwwwwwsome video bro!!! I subscribed to your channel!!! and I learned a lot! and can you make a pokemon type of tutorial?

[@BroCodez]

haha my latest video on FileReaders is pokemon themed actually lol

[@Gaminiheraliyawala]

Dear Bro you are simply amazing... ❤❤💐💐being sooo... generous in sharing your wealth of knowledge and you certainly deserve a very big appreciation for making me impressed to learn Java programming. God Bless You Bro...🙏🙏. I really loved it and impatient to try it ASAP..... 👌👌👍👍

[@rsdigiomoney]

I followed through this whole tutorial on Linux with text editor and terminal Javac compiling (no IDE!) and it worked flawlessly even when packaged into a jar file. I feel like I learned stuff but even if I didn’t, I at least understand how the program works and it was fun to feel like I’m coding stuff just by following along

[@omeraran9398]

I love your channel.

[@irizjuh1321]

Wonderful video! This series has been really helpful in training my way of thinking too! Sometimes I pause the video and finish the line or piece of code before starting the video again so I can check it. Thank you so much for the effort! For the delete-button Action-listener, I wrote these alternative lines btw. if(e.getSource()==delButton) { textField.setText(textField.getText().substring(0,(textField.getText().length() - 1))); } It takes the text in the textfield and replaces it with a substring that leaves out the last index. This way you don't need to create a for-loop and you can do it with one line instead! I really learned this way of thinking through practicing with your videos - so thanks a lot! :D

[@hamadareda1695]

thank you this is relly amazing

[@khusanbekgafurov]

Awesome job I like it Thanks

[@Hypa_Playz]

Nice content keep it up!!!🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥

[@iluvkent7777]

thank u for this nice tutorial

[@micev672]

Thank you sir!

[@retro9794]

Thank you!

[@nashiroyohei5925]

Thank you. This is my first heavy coding project😂