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Employee Salary Calculation using Flutter

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This tutorial will teach you to calculating the employee salary Calculation App.The app is developed steps ahead of the existing world. While app development will be very useful for the future as well.Input the employee name and the basic salary calculate and display the netsalary using following condition.

1.  if the basic salary is more than 50000 then include 10% tax.
2. if the basic salary is more than 30000 then include 5% tax.
3. otherwise no tax.

Main.dart

import 'package:employee_app/employee_salary.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        
        primarySwatch: Colors.blue,
      ),
      home: EmployeeSalary(),
    );
  }
}


employee_salary.dart


import 'package:flutter/material.dart';

class EmployeeSalary extends StatefulWidget {
  const EmployeeSalary({ Key key }) : super(key: key);

  @override
  State<EmployeeSalary> createState() => _EmployeeSalaryState();
}

class _EmployeeSalaryState extends State<EmployeeSalary> {
  @override
  Widget build(BuildContext context) {
     final _amount = TextEditingController();
      final _tax = TextEditingController();
      final _netsal = TextEditingController();
       var size = MediaQuery.of(context).size;
      double cal;
      double result;
       double salary;
        double taxcal;
        double sum;
    return Scaffold(
      body: SafeArea(

      child: Container(
          child:  Column(
            children: [
              Text("Employee Salary Calculation",style: TextStyle(fontSize: 30, color: Colors.black)),
              SizedBox(height: 15,),
               TextField(
                           controller: _amount,
                           decoration: InputDecoration(
                             labelText: "Salary",
                             labelStyle: TextStyle(fontSize: 15,color: Colors.grey.shade400),
                             border: OutlineInputBorder(borderRadius: BorderRadius.circular(10))
                           ),
                ),
                SizedBox(height: 15,),
                SizedBox(height: 15,),
               TextField(
                           controller: _tax,
                           decoration: InputDecoration(
                             labelText: "Tax",
                             labelStyle: TextStyle(fontSize: 15,color: Colors.grey.shade400),
                             border: OutlineInputBorder(borderRadius: BorderRadius.circular(10))
                           ),
                ),
                SizedBox(height: 15,),
                TextField(
                           controller: _netsal,
                           decoration: InputDecoration(
                             labelText: "NetSalary",
                             labelStyle: TextStyle(fontSize: 15,color: Colors.grey.shade400),
                             border: OutlineInputBorder(borderRadius: BorderRadius.circular(10))
                           ),
                ),
                SizedBox(height: 15,),  
                GestureDetector(

                    onTap: ()
             {

                  salary = double.parse(_amount.text);
                  if(salary > 50000)

                {
                    taxcal =  salary * 10/100;

                }

                else if(salary > 30000)
                {

                    taxcal =  salary * 5/100;
                }

                else
                {
                    taxcal = 0;
                }


                
              result = sum;
            _tax.text = taxcal.toString();
            double netcal = salary - taxcal;
            _netsal.text = netcal.toString();

              },

                  child: Container(
                    alignment: Alignment.center,
                       height: size.height / 14,
                        width: size.width,
                      
                        decoration: BoxDecoration(color: Colors.red,
                            borderRadius: BorderRadius.circular(5)),
                    child: Text("Convert", 
                                      style: TextStyle(color: Colors.white,
                                      fontWeight: FontWeight.bold),),
                  ),
                ),

            ],
          ),
        
      ),
    ),
    );
    
  }
}

I have attached the video tutorial below it will help you  to do this  step by step.

 

 

 

 

 

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