코드 목록 4-1

int integerVar = 100;
        float floatingVar = 331.72;
        double doubleVar = 8.44e+11;
        char charVar = 'W';
        
        NSLog(@"
integerVar = %i", integerVar);
        NSLog(@"
floatingVar = %f", floatingVar);
        NSLog(@"
doubleVar = %e", doubleVar);
        NSLog(@"
doubleVar = %g", doubleVar);
        NSLog(@"charVar = %c", charVar);

출력을 디버깅하려면 다음과 같이 하십시오.
2013-11-10 22:51:32.830 prog1[1584:303] 
integerVar = 100
2013-11-10 22:51:32.832 prog1[1584:303] 
floatingVar = 331.720001
2013-11-10 22:51:32.832 prog1[1584:303] 
doubleVar = 8.440000e+11
2013-11-10 22:51:32.832 prog1[1584:303] 
doubleVar = 8.44e+11
2013-11-10 22:51:32.832 prog1[1584:303] charVar = W
Program ended with exit code: 0