XcodeというかObjective-Cの勉強（超基礎編：動的配列とか文字列の比較とか）

配列

動的配列の方法はどうなっている？

//
//  main.m
//  sample1
//
//  Created by xxxx on 2014/05/14.
//  Copyright (c) 2014年 xxxx. All rights reserved.
//

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{

    @autoreleasepool {
        
        // insert code here...
        NSLog(@"Hello, World!");
        
        // 文字列の比較
        NSString *aaa = @"aaa";
        if([aaa isEqualToString: @"aaa"]){
            NSLog(@"aaa一致");
        }
        if([aaa isEqualToString: @"bbb"]){
            NSLog(@"aaa一致");
        }else{
            NSLog(@"aaa不一致");
        }
        
        // Boolean
        Boolean vv;
        vv = true;
        
        if(vv == true){
            NSLog(@"vv match");
        }else{
            NSLog(@"vv no match");
        }
        
        if(vv == false){
            NSLog(@"vv match");
        }else{
            NSLog(@"vv no match");
        }
        
        // 配列を定義して、一気に３つ設定する
        NSArray *list;
        list = [NSArray arrayWithObjects:@"aaa", @"bbb", @"ccc", nil];
        
        // for eachにて繰り返し
        for(NSObject *obj in list){
            NSLog(@"%@", obj);
        }
        
        // 動的に配列に項目を追加
        NSMutableArray *list2 = [NSMutableArray array];
        [list2 addObject:@"xxx1"];
        [list2 addObject:@"xxx2"];
        [list2 addObject:@"xxx3"];
        [list2 addObject:@"xxx4"];
        [list2 removeObjectAtIndex:2];
        
        // for eachにて繰り返し
        for(NSObject *obj in list2){
            NSLog(@"%@", obj);
        }
        
    }
    return 0;
}

結果

2014-05-14 21:43:04.713 sample1[9781:303] Hello, World!
2014-05-14 21:43:04.715 sample1[9781:303] aaa一致
2014-05-14 21:43:04.716 sample1[9781:303] aaa不一致
2014-05-14 21:43:04.716 sample1[9781:303] vv match
2014-05-14 21:43:04.716 sample1[9781:303] vv no match
2014-05-14 21:43:04.717 sample1[9781:303] aaa
2014-05-14 21:43:04.717 sample1[9781:303] bbb
2014-05-14 21:43:04.717 sample1[9781:303] ccc
2014-05-14 21:43:04.718 sample1[9781:303] xxx1
2014-05-14 21:43:04.718 sample1[9781:303] xxx2
2014-05-14 21:43:04.718 sample1[9781:303] xxx4
Program ended with exit code: 0