Question

1) [5 pts] Build a simple calculator using switch statements which can perform the four operations +, -, *,/. Write a program that asks the user to enter two numbers/operands. Then prompt the user to enter the operator +,, ). Perform the corresponding operation and display the answer to user. The format Example of multiplication Microsoft Visual Studio Debug Console an operator (+, -, *, ): Enter two operands: 25.5 2.314 25.5 2.314597 2) [5 pts] Create a program to prompt the user to enter the number of candy bars he or she would like to buy. The input will be a number. Use the switch/case structure to determine the bill, where 1 bar $0.75 2bars- $1.25 3 bars $1.65 more than 3 bars 1.65$0.30 (number ordered -3) Hint: Use iflelse statement to check if the user enters a positive number for number of bars Otherwise display an error message. Microsoft Visual Studio Debug Console nter number of bars: 5 of 5 bars is $2.25

Answer 1

Hi,

Answer 1-

using System;

public class Test1

{   

public static void Main()

{

double c;

Console.Write("Enter an Operator(+,-,*,/):");

string op=Console.ReadLine();

Console.Write("Enter two Operands : ");

double n1= Convert.ToDouble(Console.ReadLine());

double n2= Convert.ToDouble(Console.ReadLine());

switch (op)

{

case "+":

c=n1+n2;

Console.WriteLine(" {0} + {1} = {2} ", n1,n2,c);

break;

case "-":

c=n1-n2;

Console.WriteLine(" {0} - {1} = {2} ", n1,n2,c);

break;

case "*":

c=n1*n2;

Console.WriteLine(" {0} * {1} = {2} ", n1,n2,c);

break;

case "/":

c=n1/n2;

Console.WriteLine(" {0} / {1} = {2} ", n1,n2,c);

break;

default:

Console.WriteLine("Default case");

break;

}   

  

}

}

Screenshot-

save un share repl talk Sign up , run Ce, and host your programs and apps online for free. D saved Mono C# compiler version 4.6.2.0 1 using System; 2 public class Test1 ter an Operator(+,-,*,/): + Enter two Operands2.3 3.4 public static void Main() 2.33.4 5.7 double c; Console.Write( Enter an Operator(+,*,/): string op-Console.ReadLine); Console.Write( Enter two Operands ") double n1- Convert.ToDouble(Console.ReadLine)); double n2- Convert.ToDouble(Console.ReadLine)) switch (op) 16 13 14 15 16 17 18 19 20 21 case"+" c-n1+n2; Console.WriteLine(ne 12 \n, n1,n2,c); break case c-n1-n2 Console.WriteLine(n(a)- [1] -[2) \n", n1,n2c); break; case "* c-n1*n2; Console, break; 23 riteLine("\n(아 {1} {2} \n", n1,n2,c); = 25 26 case "/ c=n1/n2; 28 29 30 31 32 Console.writeLine(Infe / 12 n", n1,n2,c); break; default: Console.WriteLine("Default case"); break; 34 35 36

Answer 2-

using System;

public class Test2

{   

public static void Main()

{

double c;

Console.Write("Enter the number of bars:");

int val=Convert.ToInt32(Console.ReadLine());

if(val<0)

{

Console.WriteLine(" Number of bars can't be negative");

}

else

{

switch (val)

{

case 1:

c=0.75;

Console.WriteLine(" Cost of {0} bars is $ {1} ", val,c);

break;

case 2:

c=1.25;

Console.WriteLine(" Cost of {0} bars is $ {1} ", val,c);

break;

case 3:

c=1.65;

Console.WriteLine(" Cost of {0} bars is $ {1} ", val,c);

break;

default:

c=1.65+(val-3)*0.30;

Console.WriteLine(" Cost of {0} bars is $ {1} ", val,c);

break;

}

}   

  

}

}

Screenshot-

# compiler, Online C# IDE, and online C# RE." le Ca, run Cs, and host your programs and apps online for free. un share 요요 repl talk main.cs O saved Mono C compiler version 4.6.2.0 Enter the number of bars: 6 Cost of 6 bars is $ 2.55 1 using System; 2 public class Test2 public static void Main() double C; Console.Write("Enter the number of bars:") int val-Convert.ToInt32(Console.ReadineO) if (val<e) 18 Console.WriteLine(nNumber of bars can't be negative"); 13 14 15 16 17 18 19 else switch (val) case 1 c-0.75; Console.WriteLine(InCost of (e) bars is (1 In", al,c): break; case 2: C-1.25; 23 Console.riteLine(InCost of e bars is $ [1 n, val,c); break; 25 26 27 case 3: C-1.65; Console.WriteLine("\nCost of {아 bars is $ {1) Vn", break: val,c); default: 29 30 31 32 C-1.65+(val-3).3e; Console.WriteLine( Incost of e bars is $ f1n, val,c); break; 34 36 37