Calculator | Calculator app created with Java | Apps library
kandi X-RAY | Calculator Summary
kandi X-RAY | Calculator Summary
A very basic calculator application created with Java Swing.
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Top functions reviewed by kandi - BETA
- Calculate double
- Initializes the JButton
- Initializes the combo box
- Repaints the font
Calculator Key Features
Calculator Examples and Code Snippets
public static void main(String[] args) {
System.out.println("---------------------------------- \n" + "Welcome to Basic Calculator \n" + "----------------------------------");
System.out.println("Following operations are supported :
function Calculator() {
this.read = function() {
this.a = +prompt('a?', 0);
this.b = +prompt('b?', 0);
};
this.sum = function() {
return this.a + this.b;
};
this.mul = function() {
return this.a * this.b;
};
}
def main():
"""Main function."""
# Create an instance of `QApplication`
pycalc = QApplication(sys.argv)
# Show the calculator's GUI
view = PyCalcUi()
view.show()
# Create instances of the model and the controller
model
Community Discussions
Trending Discussions on Calculator
QUESTION
I've been redesigning a calculator for my website and there's a feature that I'd like to add to it. I have two divs next to each other and another div that I'd like to put in between them. I've been using the float function but nothing obvious seems to work. Aside from that, the div is supposed to contain two lines over and under text (I'll elaborate a bit more later) and I'm not sure what to do to achieve this, can someone please help?
Below is an image of what my issue is (red boxes are just to show the divs).
Below is what I'm trying to achieve (red boxes are just showing each div - not actually part of the design). I want a line above and below "OR" that separates the divs on either side and it has to resize relative to the size of the whole thing. For example: if the window is resized (if that makes sense).
If you need additional information then please ask.
...ANSWER
Answered 2021-May-27 at 11:33I wouldn't recommend you to use float since it has a strange behaviour sometimes. I would rather use flexboxes to achieve the layout.
1. Create the HTML Structure:
QUESTION
The task is to build an accurate price calculator which accounts for a sales price based on quantity. I've built a gross price calculator using compiledCart.reduce() method, (below) however I can't figure out how to add the sales functionality.
If the user buys 1 Candy, the price is $3.97, if the user buys 2, the price is $5.00. If the user buys 3, then first two are $5.00 and the 3rd is $3.97. Same thing if the user buys 5. The first 4 are $10 and the 5th one is $3.97
My compiledCart variable looks like this:
...ANSWER
Answered 2021-Jun-15 at 05:53if the quantity is greater than 2 then:
divide the quantity by 2 and multiply by salesPrice
QUESTION
I am trying to call an url with question mark in Laravel... I am working on a calculator api that uses the following url, for example:
...ANSWER
Answered 2021-Jun-14 at 21:58From what I know, you can't do this.
When you do url/something?a=123&b=456
, you are able to then do:
QUESTION
I'm trying to sum the contents of columns in Sheet1 that are 6 cells apart (i.e. the first is G19:G28, the second is M19:M28) using a for loop to define the column value. So, I want the sum of the G column, the sum of the M column, and so on, but only if the column value is greater than 0. The sums are then assigned to consecutive cells in a sheet called 'Calculator.' This is what I have so far, but it is not working. Any help is appreciated!
...ANSWER
Answered 2021-Jun-14 at 17:41A Quick fix
QUESTION
I am trying to program a calculator using python. It does not let me run the code because this error tells that: ValueError: could not convert string to float: '' This code was working but suddenly this error showed up. Could anyone help me with telling what I should change or add. This is the part of the code where the error occurs.
...ANSWER
Answered 2021-Jun-14 at 08:51The problem is here:
QUESTION
I am trying to create a small pricing calculator. I am passing variables from id elements(complex,subject,number_quiz) to formula to calculate and output results to id variable total.
I after passing variables to the formula, it's not calculating and not displaying any results.
...ANSWER
Answered 2021-Jun-14 at 05:55First, I believe you mean var total = (com + subject) * n_q;
rather than var total = (com + subject)n_q;
.
Second, all if
clauses run the same code, so you can remove all the if
statements and leave the code as.
Third, you need to change getElementsById
to getElementById
.
QUESTION
I have two selects, I want to configure them so that only a certain amount of options show in the second select, depending on which first selection is chosen.
I found some code from this post and I've tried to edit it for my situation, as I need too keep the values as they are, because I'm using them in a calculator that needs them like that.
If any one could help me fix/finish this code so it works, it would be much appreciated!
What I'm trying to achieve:
- If the user selects combo-x1, bench-x1 option only shows
- If the user selects combo-x2, bench-x1 option + bench-x2 option only shows
- If the user selects combo-x3, bench-x1 option + bench-x2 + bench-x3 option only shows
- If the user selects combo-x4 up to combo-8, all options show
Here is the JSFiddle: https://jsfiddle.net/mbxz186q/
But here is the code so far as well:
...ANSWER
Answered 2021-Jun-14 at 02:05Don't need jquery or complex javascript for this, most of it can be done via css:
QUESTION
I would like for the input to remember the first number given to it even if you type something silly on the second input. While right now obviously the loop starts again and asks for both of the inputs again. Is there an easy way to do this?
...ANSWER
Answered 2021-Jun-13 at 03:36Use separate try statements for each input with their own loops
QUESTION
Hi guys i am making calculator app and i have got a problem. I made 3 radio buttons and want them to be checked with 'if statement' in JS file. It just does not work at all because 'main' does not get any class when input2 or 3 is clicked. Only the first one makes 'main' getting it but thats because of input1.checked is defaultly set to true (becaue i want the app to have a theme 1 at the start of the page). Can anyone help me, pls?
Here is the link to the project on my github:
...ANSWER
Answered 2021-Jun-12 at 17:25Select the radio inputs with document.querySelectorAll('input[name="theme"]')
, loop through them with forEach()
and add an event listener for change
.
QUESTION
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({ Key? key }) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData(
primaryColor:Colors.pink[300],
),
home: Calculator(),
debugShowCheckedModeBanner: false,
);
}
}
class Calculator extends StatefulWidget {
const Calculator({ Key? key }) : super(key: key);
@override
_CalculatorState createState() => _CalculatorState();
}
class _CalculatorState extends State {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Calculator'),
centerTitle: true,
),
body:Container(
child: Column(
children: [
Expanded(
child:Container(
padding: EdgeInsets.all(10.0),
alignment: Alignment.bottomRight,
child:Text(text,
style: TextStyle(
fontSize: 50.0,
fontWeight: FontWeight.w500,
),
),
)
),
Row(
children: [
customElevatedButton('9',),
customElevatedButton('8',),
customElevatedButton('7',),
customElevatedButton('+',),
],
),
Row(
children: [
customElevatedButton('6',),
customElevatedButton('5',),
customElevatedButton('4',),
customElevatedButton('-',),
],
),
Row(
children: [
customElevatedButton('3'),
customElevatedButton('2'),
customElevatedButton('1'),
customElevatedButton('X'),
],
),
Row(
children: [
customElevatedButton('C',),
customElevatedButton('0',),
customElevatedButton('=',),
customElevatedButton('/',),
],
),
],
),
)
);
}
Widget customElevatedButton(num) {
return Expanded(
child: RaisedButton(
padding:EdgeInsets.all(25.0),
color:Colors.pink[100] ,
onPressed:(){
operation(num);
},
child:Text(num,
style: TextStyle(fontSize: 40.0),
),
),
);
}
String text='';
void operation(clickedButt)
{
String result;
int first,second;
String opp;
if(clickedButt=='C'){
result='';
text='';
}
else if(clickedButt=='+'||clickedButt=='-'||clickedButt=='X'||clickedButt=='/'){
first=int.parse(text);
result='';
opp=clickedButt;
}
else if(clickedButt=='='){
second=int.parse(text);
result='';
if(opp=='+'){
result=(first+second).toString();
}
else if(opp=='-'){
result=(first-second).toString();
}
else if(opp=='*'){
result=(first*second).toString();
}
else if(opp=='/'){
result=(first/second).toString();
}
else{
result=int.parse(text+clickedButt).toString();
}
}
else{
result=text+clickedButt;
}
setState(() {
text=result;
});
}
}
...ANSWER
Answered 2021-Jun-12 at 17:07With dart null safety you cannot assign null to the String opp;
The error says you have initialized the variable opp;
with null value. To avoid that either,
change
String opp;
toString? opp;
use late keyword before opp as
late String opp;
(in this case you have to make sure that you are assigning opp variable before is is used otherwise it will throw late initialization error again)assign value to opp variable at the declaration as
String opp = "someString";
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install Calculator
Press the Fork button (top right the page) to save copy of this project on your account.
Download the repository files (project) from the download section or clone this project by typing in the bash the following command: git clone https://github.com/HouariZegai/Calculator.git
Imported it in Intellij IDEA or any other Java IDE.
Run the application :D
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