Count1 is an int. I used .5 instead of 1 because when I used 1 it returned 0,2,4,6,8...
It's doing that because of the Count++ in your initWithFormat message.
You should review the incrementing operators ++ and --, and the difference between a suffixed operator (such as Count++) and a prefixed operator (such as ++Count).
Code:
if ([l1.text[COLOR="Red"]=@"4"[/COLOR] isEqualToString:numValue])
{ NSLog(@"1");
l1.text = @"A";
[numValue release];
}else if ([l1.text[COLOR="red"]=@"6"[/COLOR] isEqualToString:numValue])
I doubt that either of the red-hilited expressions are doing what you intend to happen.
Frankly, I'm not sure what you intend to happen, even though I read your earlier descriptions several times. Please give a concrete example of what should happen. Example of a concrete example:
1. The label says "3".
2. Click the button.
3. The label changes to "4".
4. Click the button again.
5. The label changes to "Cabbages".
EDIT:
Here's another example.
What it does:
1. Adds 1 to Count1.
2. Converts Count1 to a string.
3. Logs the string.
4. Assigns the string to label l1's text property.
Each step above has a simple corresponding statement in the code. I recommend writing code this way to make it clear that the code and the description actually correspond to one another.
Code:
- (IBAction) xplus1
{
Count1 = Count1 + 1; // one way to add 1
NSString * numValue = [NSString stringWithFormat:@"%d", Count1];
NSLog( numValue );
l1.text = numValue;
}
What it doesn't do:
A. It doesn't check for any particular value of Count1.
B. It doesn't show "A" or "B" or "Cabbages" when a particular value occurs.
One way to add 1 to Count1 is this:
Another way is this:
These two ways are equivalent.
One way to add 1 that uses ++ is this:
And the other way that uses ++ is this:
These two ways are equivalent
in this case, but that isn't always true.
There is a significant difference when ++ is used in an expression like stringWithFormat:. The former increments Count1 then uses the resulting value. The latter uses the value of Count1
before it's incremented, then increments the variable.
