lesson7

gistfile1.swift

//
//  MinusViewController.swift
//  Problem_part7
//
//  Created by masakid on 2015/03/23.
//  Copyright (c) 2015年 masaki.k. All rights reserved.
//

import UIKit

class MinusViewController: UIViewController {

    
    @IBOutlet weak var minusNum1: UITextField!
    
    @IBOutlet weak var minusNum2: UITextField!
    
    @IBOutlet weak var minusResult: UILabel!
    override func viewDidLoad() {
        super.viewDidLoad()
        self.minusNum1.keyboardType = UIKeyboardType.NumberPad
        self.minusNum2.keyboardType = UIKeyboardType.NumberPad
        

        // Do any additional setup after loading the view.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    @IBAction func pressMinusButton(sender: AnyObject) {
        let num1 = (self.minusNum1.text as NSString).integerValue
        let num2 = (self.minusNum2.text as NSString).integerValue
        let answer = num1 - num2
        self.minusResult.text = "\(answer)"
        self.minusNum1.resignFirstResponder()
        self.minusNum2.resignFirstResponder()
        
    }

    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */

}