Parse JSON from a URL and showing data into UITableView

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController<UITableViewDelegate,UITableViewDataSource>
{
 
    IBOutlet UITableView *table_view;
 
    NSMutableArray  *name_arr;
    NSMutableArray  *num_arr;
 
}
@end


#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];


  table_view.delegate = self;
    table_view.dataSource = self;

 NSString *jsonString = [NSString stringWithContentsOfURL:[NSURL URLWithString:@“Your Url”]encoding:NSStringEncodingConversionAllowLossy error:nil];//Sample url:http://www.learnswiftonline.com/Samples/subway.json
 NSDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:[jsonString dataUsingEncoding:NSUTF8StringEncoding]options:0 error:NULL];
    NSLog(@"jsonObject=%@", jsonObject);
 
    NSMutableArray *nameArray = [jsonObject objectForKey:@"your key"]; First key from dictionary
    name_arr = [[NSMutableArray alloc]init];
    num_arr =[[NSMutableArray alloc]init];
    NSMutableArray *mean_arr =[[NSMutableArray alloc]init];
 
    for(id item in nameArray)
    {
        [name_arr addObject:[item objectForKey:@“your key”]];//Any key u need to display
        [num_arr addObject:[item objectForKey:@"your key"]];//Any key u need to display
        [mean_arr addObject:[item objectForKey:@"your key"]];//Any key u need to display.
    }

 
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)theTableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return [name_arr count];
 
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
 
    static NSString *cellIdentifier = @"Cell";
 
    // Similar to UITableViewCell, but
    UITableViewCell *cell = (UITableViewCell *)[table_view dequeueReusableCellWithIdentifier:cellIdentifier];
    if (cell == nil)
    {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellIdentifier];
    }
    NSString *name_str=[name_arr objectAtIndex:indexPath.row];
 
    NSString *ver_str=[num_arr objectAtIndex:indexPath.row];
 
    cell.textLabel.text =name_str;
    cell.detailTextLabel.text=ver_str;
 
    return cell;
 
}