NSMutableArrayを使ってenqueue, dequeueをする方法のメモ
ポイント
・addObject
・object at Index 0
Queue1, Queue2, Queue3を使ったサンプルコード
[ Queue.h ]
@interface Queue : NSObject {
NSMutableArray *items;
}
– (void)enqueue:(id)queue;
– (id)dequeue;
@end
[ Queue.m ]
@implementation Queue
– (id)init
{
self = [super init];
if (self) {
// 配列の初期化
items = [[NSMutableArray alloc] init];
}
return self;
}
// キューを入れる
– (void)enqueue:(id)queue
{
[items addObject:queue];
}
// キューを取り出す
– (id)dequeue
{
id queue = [items objectAtIndex:0];
[items removeObjectAtIndex:0];
return queue;
}
@end
[ ViewController.m]
#import “ViewController.h”
#import “Queue.h”
@implementation ViewController
// Queueを使ってみる
– (void)viewDidLoad
{
[super viewDidLoad];
// Stackを使ってみる
Queue *store = [[Queue alloc] init];
// enqueu
[store enqueue:@”Queue1″];
[store enqueue:@”Queue2″];
[store enqueue:@”Queue3″];
// dequeue
NSLog(@”pop: %@”, [store dequeue]);
NSLog(@”pop: %@”, [store dequeue]);
NSLog(@”pop: %@”, [store dequeue]);
}
@end