Question

I want 2, 4, 6 to display… instead I think address numbers are displaying?

What do I need to do to correct and why?
Thanks

(purpose… to demonstrate ability to change array space and still keep the base of the array)

    int *line;

    line = new int;
    line[0] = 2;
    line = new int;
    line[1] = 4;
    line = new int;
    line[2] = 6;
    line = new int;
    printf("%d  %d  %d", line[0], line[1], line[2]);

Answer 1

Try this instead:

int *line;

line = new int[3];
line[0] = 2;
line[1] = 4;
line[2] = 6;
printf("%d  %d  %d", line[0], line[1], line[2]);
delete[] line;

Points to notice:

line = new int[3]; // here you are supposed to specify the size of your new array
...
delete[] line; // whenever you use new sometype[somevalue]; 
               // you must call delete[] later on to free the allocated resources.

Also take a look at this question in SO:

delete vs delete[] operators in C++