A great Video Tutorial series on YouTube from My Bring Back demonstrating how basic Objective C code works.
The first 5 videos show how to assign variable integers and floats and also demonstrate how to round these variables when outputted to the NSLog.
Example code from Tutorial 5
int main(int argc, const char * argv[]) { @autoreleasepool { float x = 4.52343; int y = 2.89345; float sum = x + y; NSLog(@"%.f + %i equals %.2f", x, y, sum); } return 0; }
The ‘%f’ indicates that a float will be substituted into the outputted string, a single period ‘.’ will round the float to the nearest whole number and a ‘.2′ will round the float to 1 decimal places.
Also note that the substituted pointers are ‘%f’ for a float, ‘%i’ for an integer.