How do I specify the amount of random numbers in my code in C++

I tried reading other questions to find the answer to my question but I got tired of seeing the answer being in a different coding language. I want to change the amount of numbers in my random error code. I am genuinely new to this so please no rude comments.

#include <iostream>
#include <ctime>
#include <cstdlib>

using namespace std;
 
int main () {
   int i,j[3];
 
   
   srand( (unsigned)time( NULL ) );

I set the array for j to 3 so I could try and get a maximum of 3 numbers.

for( i = 0; i < 1; i++ ) {
      
      j[3] = rand();
      cout <<"Error code: " << j << endl;
   }

   return 0;
}

Here is where the error comes in, the output of the code only sends the variable address instead of the random number. I really need help with this before I could continue my project. Please help.

Edit: Variable address is "0x7ffc9b46ed5c"