Objective-C 2.0 for ... in loop, using Fast Enumeration, with number literals

loop.m

    NSArray *array2 = @[
                            @"hello",
                            @"world",
                            [NSNull null],
                            @123,
                            @123.456
                      ];
    
    for (id obj in array2) {
        NSLog(@"the obj is %@", obj);
    }