Has anyone completed the exercises from chapter three, I just want to check my answers



q 1 super.smashing.great

q2
a yes
b no
c yes
d yes
e no

q3 its not too big

q4 in the order of * / % +

Hi:

   I believe your answers are OK, but what about q5?.

Rafael18016

hi,

ur answers r fine but if u go from left to right in equal precedence operators the sequence wud be * % / + += in Q 4. which is resultVar += var1 * var2 + var3 % var4 / var5 ;

Trying to code Q 5. Pl correct me if i am wrong. am very new to .Net in fact i am just trying to install .NET framework SDK.

/*This program takes 4 integers and displays their product. Beg_C_sharp Chapter 3 Question 5. */

using system
static void Main(string[] args)
{
   double dVar1 = 0.0, dVar2 = 0.0;
   double dVar3 = 0.0, dVar4 = 0.0;
   double dProduct = 0.0;
   Console.WriteLine("Enter 1st number :");
   dVar1 = Convert.ToDouble(Console.ReadLine());
   Console.WriteLine("Enter 2nd number :");
   dVar2 = Convert.ToDouble(Console.ReadLine());
   Console.WriteLine("Enter 3rd number :");
   dVar3 = Convert.ToDouble(Console.ReadLine());
   Console.WriteLine("Enter 4th number :");
   dVar4 = Convert.ToDouble(Console.ReadLine());
   dProduct = dVar1 * dVar2 * dVar3 * dVar4 ;
   Console.WriteLine("The product of {0}, {1}, {2} and {3} is {4}", dVar1, dVar2, dVar3, dVar4, dProduct)
}

According to kjain92's code the Q 5 would be this;
/*This program takes 4 doubles and displays their product. Beg_C_sharp Chapter 3 Question 5. */,wouldn't it?
What confused me is whether or not the type "int" belongs to "double". I think not.
However, the Q 5 gives another hint that is "Using 'Convert.ToInt32()' while turn from 'string' to 'int' ". But he above hadn't use it.
How I wish that the true answer written by the author show it here again.

Can someone tell me why this code compiles but throws errors when run? I get an error that has to do with the wrong type being used. Im pulling my hair out!

int firstNumber, secondNumber, thirdNumber, fourthNumber;
        Console.WriteLine("Enter a number: ");
        firstNumber = Convert.ToInt32(Console.ReadLine());
        Console.WriteLine("Now enter a second number: ");
        secondNumber = Convert.ToInt32(Console.ReadLine());
        Console.WriteLine("Now enter a third number: ");
        thirdNumber = Convert.ToInt32(Console.ReadLine());
        Console.WriteLine("Now enter a final number: ");
        fourthNumber = Convert.ToInt32(Console.ReadLine());
        Console.WriteLine("The product of {0} {1} {2} and {3} is (4}." ,
            firstNumber, secondNumber, thirdNumber, fourthNumber,
            frstNumber * secondNumber * thirdNumber * fourthNumber);

Never mind, I saw that I used the wrong kind of brace on the {4} placeholder after I posted the msg =P. I guess using this msgboard really DOES help.