How To Manage NSMutableDictionary And NSMutableArray

//create the dictionary
NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] init];

//add keyed data
[dictionary setObject:@"Object One" forKey:@"1"];
[dictionary setObject:@"Object Two" forKey:@"2"];
[dictionary setObject:@"Object Three" forKey:@"3"];

//write out Object Three to the log
NSLog(@"%@", [dictionary objectForKey:@"3"]);

//release the dictionary
[dictionary release];

//create the mutablearray
NSMutableArray *arrayOfObjects = [[NSMutableArray alloc] init];
[arrayOfObjects addObject:@"Object One"];
[arrayOfObjects addObject:@"Object Two"];
[arrayOfObjects addObject:@"Object Three"];
[arrayOfObjects addObject:@"Object Four"];
[arrayOfObjects addObject:@"Object Five"];

//write out Object to the log
NSLog(@"Object = %@", [arrayOfObjects objectAtIndex:object no]);