Objectivec 使用 NSArray 初始化对象数组

我对Objective-C和iOS非常陌生，所以我一直在玩Picker视图.我定义了一个Person类，这样当你创建一个新的Person时，它会自动给这个人一个名字和年龄.

#import "Person.h"

@implementation Person

@synthesize personName, age;

-(id)init
{
    self = [super init];
    if(self)
    {
        personName = [self randomName];
        age = [self randomAge];
    }

    return self;
}

-(NSString *) randomName
{
    NSString* name;
    NSArray* nameArr = [NSArray arrayWithObjects: @"Jill Valentine", @"Peter Griffin", @"Meg Griffin", @"Jack Lolwut",
                            @"Mike Roflcoptor", @"Cindy Woods", @"Jessica Windmill", @"Alexander The Great",
                            @"Sarah Peterson", @"Scott Scottland", @"Geoff Fanta", @"Amanda Pope", @"Michael Meyers",
                            @"Richard Biggus", @"Montey Python", @"Mike Wut", @"Fake Person", @"Chair",
                            nil];
    NSUInteger randomIndex = arc4random() % [nameArr count];
    name = [nameArr objectAtIndex: randomIndex];
    return name;
}

-(NSInteger *) randomAge
{
    //lowerBound + arc4random() % (upperBound - lowerBound);
    NSInteger* num = (NSInteger*)(1 + arc4random() % (99 - 1));

    return num;
}

@end

现在我想做一组人，这样我就可以把一堆人扔进挑选器，挑选一个人，并显示他们的年龄.首先，我需要做一系列的人.如何创建对象数组、初始化和分配它们？