Recently, After resolving major issues thanks to your patience and help, I've encountered another problem:
Now, I am aware of the method to covert int to char(array):
int x = 123;
sprintf(y, "%d", x);
Here's the problem:
I need to concatenate x to y(place x at the END of y), which something that I was able to accomplish since 'sprintf' basically overwrites whatever was previously stored in y.