Calculator

Calculator

yurij (guest) 05 Jan 2015 10:52

doing the calculator part. pretty hard..
=/.

Console.WriteLine("Enter the first number: ");
string userinput = Console.ReadLine();
int firstnum = Convert.ToInt32(userinput);

Console.WriteLine("Enter the second number: ");
string userinputtwo = Console.ReadLine();
int secondnum = Convert.ToInt32(userinputtwo);

Console.WriteLine("Enter the operation (+, -, *, /, or ^)");
string userinputthree = Console.ReadLine();
int operation = Convert.ToInt32(userinputthree);

Console.WriteLine(firstnum + operation + secondnum);

Console.ReadKey();

i keep getting an error on this line!

Console.WriteLine(firstnum + operation + secondnum);

im just trying to make it all show up in console on one line

yurij (guest) 05 Jan 2015 10:53

gonna be a little hard to figure out how to add them together…

yurij (guest) 05 Jan 2015 10:54

sorry i mean this line gives me error
int operation = Convert.ToInt32(userinputthree);
making me mad

yurij (guest) 05 Jan 2015 11:04

making progress

int answer = firstnum + secondnum;

switch(answer)
{
case 1:
Console.WriteLine(firstnum + secondnum);
break;
}

Console.WriteLine(+ firstnum + " " + operation + " " + secondnum + "=" + answer);

Console.ReadKey();

just have to figure out how to make it subtract, multiply etc.

yurij (guest) 05 Jan 2015 11:13

i dont understadn how u use case 1,2,3,4,5,

if user enters number 1 case 1 shows….
i dont get how u make it like add… and subtract.
look what i have..

int add = 1;
int sub = 2;
switch(add == 1 || sub == 2)
{
case 1:
Console.WriteLine(firstnum + secondnum);
break;

case 2:
Console.WriteLine(firstnum - secondnum);
break;
}

yurij (guest) 05 Jan 2015 11:14

you didnt show us how to do userinput with casses. which is myproblem.

yurij (guest) 05 Jan 2015 11:29

this is the only ghetto way imtrying to do it =/.

int add = firstnum + secondnum;

switch(add)
{
case 1:
Console.WriteLine(firstnum + secondnum);
break;

int sub = firstnum - secondnum;
switch(sub)
{
case 1:
Console.WriteLine(firstnum + secondnum);
break;

yurij (guest) 05 Jan 2015 11:46

screww the case for now..if is taking me like 2 hours!!!!!!!!!!!!!!!

string answer = operation;
if (answer == "+")
{
Console.WriteLine(firstnum + secondnum);
}
else if (answer == "-")
{
Console.WriteLine(firstnum - secondnum);
}
else
{
Console.WriteLine("enter number");
}

Console.WriteLine(+ firstnum + " " + operation + " " + secondnum + "=");

Console.ReadKey();

i dont think this is normal. taking 2 hours to mae a simple calculator

yurij (guest) 05 Jan 2015 11:52

Console.Write("Enter the first number: ");
string userinput = Console.ReadLine();
int firstnum = Convert.ToInt32(userinput);

Console.Write("Enter the second number: ");
string userinputtwo = Console.ReadLine();
int secondnum = Convert.ToInt32(userinputtwo);

Console.Write("Enter the operation (+, -, *, /, or ^)");
string operation = Console.ReadLine();

string answer = operation;
if (answer == "+")
{
Console.WriteLine(firstnum + secondnum);
}
else if (answer == "-")
{
Console.WriteLine(firstnum - secondnum);
}
else
{
Console.WriteLine("enter number");
}

Console.WriteLine(+firstnum + " " + operation + " " + secondnum + "=");

why does it keep writing the answer above the firstnum + secondnum……

yurij (guest) 05 Jan 2015 11:59

im done for now…
just making me to mad.

yurij (guest) 05 Jan 2015 12:08

Console.Write("Enter the first number: ");
string userinput = Console.ReadLine();
int firstnum = Convert.ToInt32(userinput);

Console.Write("Enter the second number: ");
string userinputtwo = Console.ReadLine();
int secondnum = Convert.ToInt32(userinputtwo);

Console.Write("Enter the operation (+, -, *, /, or ^)");
string operation = Console.ReadLine();
int answer = Convert.ToInt32(operation);

if (answer == "+")
{
Console.WriteLine(firstnum + secondnum);
}
else if (answer == "-")
{
Console.WriteLine(firstnum - secondnum);
}
else
{
Console.WriteLine("enter number");
}

Console.WriteLine(+firstnum + " " + operation + " " + secondnum + "= " + operation);

yeah i tried everything.. it wont letme use ==

yurij (guest) 05 Jan 2015 12:14

i jsut looked at the code and u used

case "+" .… . .… .. <— u never taught that…
i even google searched it and found that, but i wouldn't think i could use it cause it wasn't in the teachings

yurij (guest) 05 Jan 2015 12:22

result = (int)Math.Pow(number1, number2);

i would have never wrote that….

yurij (guest) 05 Jan 2015 12:23

would have never wrote that

onsole.WriteLine("Enter the first number: ");
int number1 = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("Enter the second number: ");
int number2 = Convert.ToInt32(Console.ReadLine());

i have it like this.. um..

Console.Write("Enter the first number: ");
string userinput = Console.ReadLine();
int firstnum = Convert.ToInt32(userinput);

Console.Write("Enter the second number: ");
string userinputtwo = Console.ReadLine();
int secondnum = Convert.ToInt32(userinputtwo);

yurij (guest) 05 Jan 2015 12:24

wait wt….

what do these 2 lines do?

string userinput = Console.ReadLine(); // i thought this one lets you type… cause u cant type if it was int userinput..
int firstnum = Convert.ToInt32(userinput); //this converts the typing into a number. wtf

yurij (guest) 05 Jan 2015 12:29

adding this

result = 0;

fixed my unrecognized operation for result…
why do i need

result = 0; if result = my firstnumber + my second number..

default:
Console.WriteLine("NA OPERATION");
result = 0;
break;