creating dynamic buttons in iphone

-(void)mButtonclick{
UGFloat p=120;
    for(int i=0;i<3;i++){       
        UIButton *aa = [UIButton buttonWithType:UIButtonTypeCustom];  
        if(i==0){        
                NSString *name=[[NSString alloc][email protected]"ZERO"];
        }else if(i==1){
                NSString *name=[[NSString alloc][email protected]"ONE"];
        }else if(i==2){
                NSString *name=[[NSString alloc][email protected]"Two"];
        }else{
                NSString *name=[[NSString alloc][email protected]"Three"];
        }
    [aa setFrame:CGRectMake(0.0f, 0.0f, 500.0f, 40.0f)];
    [aa setCenter:CGPointMake(100.0f,p)];
    [aa setBackgroundColor:[UIColor blueColor]];
    [aa addTarget:self action:@selector(fullscreen:)   forControlEvents:UIControlEventTouchUpInside];   
    [self.window addSubview:aa];
    p=p+50;     
    }
}

//----------------fullscreen method--------------------
-(void) fullscreen:(id)sender{

    NSLog(@"button pressed on %@",[sender Stringvalue]);
}