nsstring and const char* conversion

Question

i try to convert nsstring to const char*.

1- i add a nsstring and an integer together
2- then i convert this new nsstring to const char*
3- i have an object

Answer 1

NSString* firstName = [NSString stringWithFormat: @"Name%d", 1];

const char* secondName = [firstName UTF8String];

UTF8String returns a const char:   - (const char *)UTF8String