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-rw-r--r--objective-c.html.markdown23
1 files changed, 12 insertions, 11 deletions
diff --git a/objective-c.html.markdown b/objective-c.html.markdown
index caad49a5..56640a87 100644
--- a/objective-c.html.markdown
+++ b/objective-c.html.markdown
@@ -55,7 +55,7 @@ int main (int argc, const char * argv[])
id myObject2 = nil; // Weak typing
// %@ is an object
// 'description' is a convention to display the value of the Objects
- NSLog(@"%@ and %@", myObject1, [myObject2 description]); // Print "(null) and (null)"
+ NSLog(@"%@ and %@", myObject1, [myObject2 description]); // prints => "(null) and (null)"
// String
NSString *worldString = @"World";
@@ -128,9 +128,10 @@ int main (int argc, const char * argv[])
// May contain different data types, but must be an Objective-C object
NSArray *anArray = @[@1, @2, @3, @4];
NSNumber *thirdNumber = anArray[2];
- NSLog(@"Third number = %@", thirdNumber); // Print "Third number = 3"
- // NSMutableArray is mutable version of NSArray allowing to change items in array
- // and extend or shrink array object. Convenient, but not as efficient as NSArray
+ NSLog(@"Third number = %@", thirdNumber); // prints => "Third number = 3"
+ // NSMutableArray is a mutable version of NSArray, allowing you to change
+ // the items in the array and to extend or shrink the array object.
+ // Convenient, but not as efficient as NSArray.
NSMutableArray *mutableArray = [NSMutableArray arrayWithCapacity:2];
[mutableArray addObject:@"Hello"];
[mutableArray addObject:@"World"];
@@ -140,7 +141,7 @@ int main (int argc, const char * argv[])
// Dictionary object
NSDictionary *aDictionary = @{ @"key1" : @"value1", @"key2" : @"value2" };
NSObject *valueObject = aDictionary[@"A Key"];
- NSLog(@"Object = %@", valueObject); // Print "Object = (null)"
+ NSLog(@"Object = %@", valueObject); // prints => "Object = (null)"
// NSMutableDictionary also available as a mutable dictionary object
NSMutableDictionary *mutableDictionary = [NSMutableDictionary dictionaryWithCapacity:2];
[mutableDictionary setObject:@"value1" forKey:@"key1"];
@@ -210,7 +211,7 @@ int main (int argc, const char * argv[])
while (ii < 4)
{
NSLog(@"%d,", ii++); // ii++ increments ii in-place, after using its value
- } // => prints "0,"
+ } // prints => "0,"
// "1,"
// "2,"
// "3,"
@@ -220,7 +221,7 @@ int main (int argc, const char * argv[])
for (jj=0; jj < 4; jj++)
{
NSLog(@"%d,", jj);
- } // => prints "0,"
+ } // prints => "0,"
// "1,"
// "2,"
// "3,"
@@ -230,7 +231,7 @@ int main (int argc, const char * argv[])
for (NSNumber *value in values)
{
NSLog(@"%@,", value);
- } // => prints "0,"
+ } // prints => "0,"
// "1,"
// "2,"
// "3,"
@@ -238,7 +239,7 @@ int main (int argc, const char * argv[])
// Object for loop statement. Can be used with any Objective-C object type
for (id item in values) {
NSLog(@"%@,", item);
- } // => prints "0,"
+ } // prints => "0,"
// "1,"
// "2,"
// "3,"
@@ -255,7 +256,7 @@ int main (int argc, const char * argv[])
} @finally
{
NSLog(@"Finally. Time to clean up.");
- } // => prints "Exception: File Not Found on System"
+ } // prints => "Exception: File Not Found on System"
// "Finally. Time to clean up."
// NSError objects are useful for function arguments to populate on user mistakes.
@@ -627,7 +628,7 @@ int main (int argc, const char * argv[]) {
@end
// Instances of Car now have access to the protocol.
Car *carInstance = [[Car alloc] init];
-[[carInstance setEngineOn:NO];
+[carInstance setEngineOn:NO];
[carInstance turnOnEngine];
if ([carInstance engineOn]) {
NSLog(@"Car engine is on."); // prints => "Car engine is on."