Simple Calculator Using Switch Case in Dart Program

 Here is a simple calculator program in Dart that can perform basic arithmetic operations:

examples:

import 'dart:io';

void main(){

  print('1.Addtion\n 2.Subraction\n 3.Multiplication\n 4.Divisions');

  print('Enter your chooice:');

  int  a,b;

  int choice=int.parse(stdin.readLineSync()!);

switch(choice){

    case 1:{

      print('Enter first number;');

        a=int.parse(stdin.readLineSync()!);

       print('Enter second number:');

       b=int.parse(stdin.readLineSync()!);

      print('The sum is : ${a+b}');

      break;

    }

     case 2:{

      print('Enter first number;');

        a=int.parse(stdin.readLineSync()!);

       print('Enter second number:');

        b=int.parse(stdin.readLineSync()!);

      print('The sum is : ${a-b}');

      break;

    }

     case 3:{

      print('Enter first number;');

        a=int.parse(stdin.readLineSync()!);

       print('Enter second number:');

        b=int.parse(stdin.readLineSync()!);

      print('The sum is : ${a*b}');

      break;

    }

     case 4:{

      print('Enter first number;');

        a=int.parse(stdin.readLineSync()!);

       print('Enter second number:');

        b=int.parse(stdin.readLineSync()!);

      print('The sum is : ${a/b}');

      break;

    }

     default:{

print('please enter correct chooice');

}

  }}

output:

1.Addtion        

 2.Subraction    

 3.Multiplication

 4.Divisions     

Enter your chooice:

3

3.Multiplication   

Enter first number;

2

Enter second number:

4

The sum is : 8

 function to display the result of the arithmetic operation to the user.