• Subclassing Notes

• Methods to Override

• Special Considerations

• Alternatives to Subclassing

• Creating an Array

• Initializing an Array

• Querying an Array

• Sending Messages to Elements

• Comparing Arrays

• Deriving New Arrays

• Sorting

• Working with String Elements

• Creating a Description

• Collecting Paths

• Key-Value Observing

• Key-Value Coding

• array

• arrayWithArray:

• arrayWithContentsOfFile:

• arrayWithContentsOfURL:

• arrayWithObject:

• arrayWithObjects:

• arrayWithObjects:count:

• addObserver:forKeyPath:options:context:

• addObserver:toObjectsAtIndexes:forKeyPath:options:context:

• arrayByAddingObject:

• arrayByAddingObjectsFromArray:

• componentsJoinedByString:

• containsObject:

• count

• description

• descriptionWithLocale:

• descriptionWithLocale:indent:

• filteredArrayUsingPredicate:

• firstObjectCommonWithArray:

• getObjects:

• getObjects:range:

• indexOfObject:

• indexOfObject:inRange:

• indexOfObjectIdenticalTo:

• indexOfObjectIdenticalTo:inRange:

• initWithArray:

• initWithArray:copyItems:

• initWithContentsOfFile:

• initWithContentsOfURL:

• initWithObjects:

• initWithObjects:count:

• isEqualToArray:

• lastObject

• makeObjectsPerformSelector:

• makeObjectsPerformSelector:withObject:

• objectAtIndex:

• objectEnumerator

• objectsAtIndexes:

• pathsMatchingExtensions:

• removeObserver:forKeyPath:

• removeObserver:fromObjectsAtIndexes:forKeyPath:

• reverseObjectEnumerator

• setValue:forKey:

• sortedArrayHint

• sortedArrayUsingDescriptors:

• sortedArrayUsingFunction:context:

• sortedArrayUsingFunction:context:hint:

• sortedArrayUsingSelector:

• subarrayWithRange:

• valueForKey:

• writeToFile:atomically:

• writeToURL:atomically: