NSLog format strings with example

//Integers: %i or %d
int int_val = -10;
NSLog(@"%i, %d", int_val, int_val);

unsigned int uint_val = 5;
//unsigned integers use %u
NSLog(@"%u", uint_val);

//float and double use %f
float f_val = 12.75;
NSLog(@"%f", f_val);

// Hexadecimal %x or %X
int hex = 0x15;
NSLog(@"%x", hex);

// Character %c
char char_val = 'A';
NSLog(@"%c", char_val);