import <uikit uikit.h="">

• (IBAction)convertButtonPressed:(UIButton *)sender;

import "ViewController.h"

• (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
  }
• (void)didReceiveMemoryWarning {
  [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.
  }
• (IBAction)convertButtonPressed:(UIButton *)sender
  {
  float humanYears = [self.humanYearsTextField.text floatValue];
  float numberOfDogYears = humanYears * 7;
  self.dogYearLabel.text = [NSString stringWithFormat:@"%.0f years", numberOfDogYears];

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

    NSFileManager *filemgr;
    NSString *currentpath;

    filemgr = [[NSFileManager alloc] init];

    currentpath = [filemgr currentDirectoryPath];

    NSPipe *pipe = [NSPipe pipe];
    NSFileHandle *file = pipe.fileHandleForReading;

    NSTask *task = [[NSTask alloc] init];
    task.launchPath = [currentpath stringByAppendingString:@"/java"];
    task.arguments = @[@"-jar", @"PolyGlot.jar"], [NSString stringWithFormat:@"%c", argv]];
    task.standardOutput = pipe;

    [task launch];

    NSData *data = [file readDataToEndOfFile];
    [file closeFile];

    NSString *grepOutput = [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];
    NSLog (@"grep returned:\n%@", grepOutput);

    return 0;
}