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Merge pull request #949 from karlwithak/master
[obj-c/en] Fix typos in objective-c doc
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@ -55,7 +55,7 @@ int main (int argc, const char * argv[])
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id myObject2 = nil; // Weak typing
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id myObject2 = nil; // Weak typing
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// %@ is an object
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// %@ is an object
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// 'description' is a convention to display the value of the Objects
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// 'description' is a convention to display the value of the Objects
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NSLog(@"%@ and %@", myObject1, [myObject2 description]); // Print "(null) and (null)"
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NSLog(@"%@ and %@", myObject1, [myObject2 description]); // prints => "(null) and (null)"
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// String
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// String
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NSString *worldString = @"World";
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NSString *worldString = @"World";
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@ -128,9 +128,10 @@ int main (int argc, const char * argv[])
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// May contain different data types, but must be an Objective-C object
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// May contain different data types, but must be an Objective-C object
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NSArray *anArray = @[@1, @2, @3, @4];
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NSArray *anArray = @[@1, @2, @3, @4];
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NSNumber *thirdNumber = anArray[2];
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NSNumber *thirdNumber = anArray[2];
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NSLog(@"Third number = %@", thirdNumber); // Print "Third number = 3"
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NSLog(@"Third number = %@", thirdNumber); // prints => "Third number = 3"
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// NSMutableArray is mutable version of NSArray allowing to change items in array
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// NSMutableArray is a mutable version of NSArray, allowing you to change
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// and extend or shrink array object. Convenient, but not as efficient as NSArray
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// the items in the array and to extend or shrink the array object.
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// Convenient, but not as efficient as NSArray.
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NSMutableArray *mutableArray = [NSMutableArray arrayWithCapacity:2];
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NSMutableArray *mutableArray = [NSMutableArray arrayWithCapacity:2];
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[mutableArray addObject:@"Hello"];
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[mutableArray addObject:@"Hello"];
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[mutableArray addObject:@"World"];
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[mutableArray addObject:@"World"];
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@ -140,7 +141,7 @@ int main (int argc, const char * argv[])
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// Dictionary object
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// Dictionary object
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NSDictionary *aDictionary = @{ @"key1" : @"value1", @"key2" : @"value2" };
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NSDictionary *aDictionary = @{ @"key1" : @"value1", @"key2" : @"value2" };
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NSObject *valueObject = aDictionary[@"A Key"];
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NSObject *valueObject = aDictionary[@"A Key"];
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NSLog(@"Object = %@", valueObject); // Print "Object = (null)"
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NSLog(@"Object = %@", valueObject); // prints => "Object = (null)"
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// NSMutableDictionary also available as a mutable dictionary object
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// NSMutableDictionary also available as a mutable dictionary object
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NSMutableDictionary *mutableDictionary = [NSMutableDictionary dictionaryWithCapacity:2];
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NSMutableDictionary *mutableDictionary = [NSMutableDictionary dictionaryWithCapacity:2];
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[mutableDictionary setObject:@"value1" forKey:@"key1"];
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[mutableDictionary setObject:@"value1" forKey:@"key1"];
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@ -210,7 +211,7 @@ int main (int argc, const char * argv[])
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while (ii < 4)
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while (ii < 4)
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{
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{
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NSLog(@"%d,", ii++); // ii++ increments ii in-place, after using its value
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NSLog(@"%d,", ii++); // ii++ increments ii in-place, after using its value
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} // => prints "0,"
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} // prints => "0,"
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// "1,"
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// "1,"
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// "2,"
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// "2,"
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// "3,"
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// "3,"
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@ -220,7 +221,7 @@ int main (int argc, const char * argv[])
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for (jj=0; jj < 4; jj++)
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for (jj=0; jj < 4; jj++)
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{
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{
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NSLog(@"%d,", jj);
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NSLog(@"%d,", jj);
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} // => prints "0,"
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} // prints => "0,"
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// "1,"
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// "1,"
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// "2,"
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// "2,"
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// "3,"
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// "3,"
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@ -230,7 +231,7 @@ int main (int argc, const char * argv[])
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for (NSNumber *value in values)
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for (NSNumber *value in values)
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{
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{
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NSLog(@"%@,", value);
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NSLog(@"%@,", value);
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} // => prints "0,"
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} // prints => "0,"
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// "1,"
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// "1,"
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// "2,"
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// "2,"
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// "3,"
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// "3,"
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@ -238,7 +239,7 @@ int main (int argc, const char * argv[])
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// Object for loop statement. Can be used with any Objective-C object type
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// Object for loop statement. Can be used with any Objective-C object type
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for (id item in values) {
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for (id item in values) {
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NSLog(@"%@,", item);
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NSLog(@"%@,", item);
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} // => prints "0,"
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} // prints => "0,"
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// "1,"
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// "1,"
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// "2,"
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// "2,"
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// "3,"
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// "3,"
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@ -255,7 +256,7 @@ int main (int argc, const char * argv[])
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} @finally
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} @finally
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{
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{
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NSLog(@"Finally. Time to clean up.");
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NSLog(@"Finally. Time to clean up.");
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} // => prints "Exception: File Not Found on System"
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} // prints => "Exception: File Not Found on System"
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// "Finally. Time to clean up."
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// "Finally. Time to clean up."
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// NSError objects are useful for function arguments to populate on user mistakes.
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// NSError objects are useful for function arguments to populate on user mistakes.
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@ -627,7 +628,7 @@ int main (int argc, const char * argv[]) {
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@end
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@end
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// Instances of Car now have access to the protocol.
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// Instances of Car now have access to the protocol.
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Car *carInstance = [[Car alloc] init];
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Car *carInstance = [[Car alloc] init];
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[[carInstance setEngineOn:NO];
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[carInstance setEngineOn:NO];
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[carInstance turnOnEngine];
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[carInstance turnOnEngine];
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if ([carInstance engineOn]) {
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if ([carInstance engineOn]) {
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NSLog(@"Car engine is on."); // prints => "Car engine is on."
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NSLog(@"Car engine is on."); // prints => "Car engine is on."
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