Thread: Would you explain something to me about arrays in C language?

Although not required, I usually write < int main(void) > when I do not take command line arguments. You should read How to define main()-FAQ and come up with how you want to do it.

Code:

int main()
{
     int array[10];
     int nextvar = 5;
     int i;
     
     printf( "nextvar is %d.\n", nextvar); /*is output so I should put &, correct?*/

You are telling printf you are printing an integer and that integer is what is stored in nextvar. If you put the & in front then you would be printing the memory address of nextvar vice its value.

Code:

for ( i=0; i<=10; i++);  /*I do not understand the error here. Is it the <= sign?*

You answered this yourself here:

On this example I understand that there is a variable test_scores that is defined
as an array that has ten elements. The indices will be integers 0 though 9.

What is the value of array[10]?

Originally Posted by kelleannmccan

While reading the code is much simpler than actually writing it, sometimes even reading is not so simple!

Actually, it is typically easier to write code than to read it. When you write code, you would usually have some understanding of what the code does and you get to express it in the way you choose; when you read code, you would usually lack understanding of what the code does and you don't get to choose how it was expressed.

The code you write is always written by you (obviously).
The code you read is mostly written by someone else (especially when you're working in a team).

Also, code written by you some time ago is fairly indistinguishable from code written by someone else