Keep getting expression result unused when trying to update UILabel - ios

Question

I'm very new to programming in general. I am trying to update the UILabel "Lives" with the integer life. However I keep getting the warning "expression result unused" in the line
Lives.text = #"",life;
//
// Game.m
// SprinklerDash
#import "Game.h"
#interface Game ()
#end
#implementation Game
-(void)Walk{
Runner.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"Runner1.png"],
[UIImage imageNamed:#"Runner2.png"],
[UIImage imageNamed:#"Runner3.png"],
[UIImage imageNamed:#"Runner4.png"],
[UIImage imageNamed:#"Runner5.png"],
[UIImage imageNamed:#"Runner6.png"],
[UIImage imageNamed:#"Runner7.png"],
[UIImage imageNamed:#"Runner8.png"], nil];
[Runner setAnimationRepeatCount:INFINITY];
Runner.animationDuration = .75;
[Runner startAnimating];
}
-(void)Moving{
Runner.center = CGPointMake(Runner.center.x, Runner.center.y - UpMovement);
if(CGRectIntersectsRect(Runner.frame, Water.frame)){
life = life - 1;
Lives.text = #"",life;
Runner.center = CGPointMake(Runner.center.x, Runner.center.y + 100);
}
}
-(IBAction)StartGame:(id)sender{
Start.hidden=YES;
UpMovement = 3;
[self Walk];
Movement = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:#selector(Moving) userInfo:nil repeats:YES];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end

Answer 1

If Lives is your label, Then it should be as below.
Lives.text =[NSString stringWithFormat:#"%#",life]; /// if life is string
Lives.text =[NSString stringWithFormat:#"%d", life]; /// if life is integer

Answer 2

Replace this with your Method, and it is good to go.
-(void)Moving{
Runner.center = CGPointMake(Runner.center.x, Runner.center.y - UpMovement);
if(CGRectIntersectsRect(Runner.frame, Water.frame)){
life = life - 1;
lives.text = [NSString stringWithFormat:#"%d",life];
// Lives.text = #"",life;
Runner.center = CGPointMake(Runner.center.x, Runner.center.y + 100);
}
}