Displaying the Values of Variables
Not only can simple phrases be displayed with NSLog
, but the values of variables and the results of computations can be displayed as well. Program 2.4 uses the NSLog
routine to display the results of adding two numbers, 50 and 25.
#import <Foundation/Foundation.h>int main (int argc, const char *argv[]){ @autoreleasepool { int sum; sum = 50 + 25; NSLog (@"The sum of 50 and 25 is %i", sum); } return 0;}
The sum of 50 and 25 is 75
The first program statement inside main
after the autorelease pool is set up defines the variable sum
to be of type int
eger. You must define all program variables before you can use them in a program. ...
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