Help me basic debug

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I have a problem a bit. I don't know how should I put answer?

Here sample output:

a + b = 3
The value of c is: 5

please help me thanks

What I have tried:

int a = 1;
double b = 2;
int c;

Console.WriteLine("a + b = " + (a + b));
Console.WriteLine("The value of c is: " + c);

Posted 4-Sep-16 21:32pm

bearforever99

Updated 4-Sep-16 21:46pm

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CPallini · Answer 1 · 2016-09-04T21:46:00

Solution 1

In the posted code, you never assign c, hence such code shouldn't even compile. If you are trying to store in c the result of the computation then do it:
c = (int) (a+b);
By the way: why are you mixing integer values with floating point ones?

Posted 4-Sep-16 21:46pm

CPallini

OriginalGriff · Answer 2 · 2016-09-04T21:46:00

The trouble is that you aren't assigning anything.
Think of a variable as a pocket in your shirt, which can hold an item : a pen, a pencil, a hankie.
Unless you explicitly put something in the pocket, you can't take it out!
So try doing the operation, but putting the result into the "pocket":

C#

int a = 1;
int b = 2;
int c = a + b;
Console.WriteLine("The value of {0} + {1} is {2}", a, b, c);

You shouldn't "mix types" unless you need to - it can cause some odd problems - so I changed the declaration of b from double to int to match a and c.
The final line is just a "tidy up" form or what you had: the curly brackets in the string will be replaced with the value from the list after it, using the number as a count: {0} will be replaced with the first value (in this case from the variable a), {1} will be replaced with the second value (in this case from the variable b), and so on.
Try it and see what happens!