string formatting in a cocoa tutorial

Question

I am doing a Cocoa tutorial where I need to count the characters in a field, then output something like 'the_string_i_am_count' has 21 characters.

I have managed to get the string, count it, and output the count but I have no idea how to output the count along with the string and the other info.

How would I do this?

-(IBAction)countCharacters:(id)sender
{
    //i had to connect this to the class also to make it get the value.
    //NSString *string = [inputField stringValue];

    //get the number of chars
    NSUInteger length = [[inputField stringValue] length];

    [outputField setIntValue:length]; //string];
    //[outputField setStringValue: @"'s' has %d characters.", string, length];
}

Semi working code:

-(IBAction)countCharacters:(id)sender
{
    //i had to connect this to the class also to make it get the value.
    NSString *string = [inputField stringValue];

    //get the number of chars
    NSUInteger length = [[inputField stringValue] length];

    [outputField setStringValue:[NSString stringWithFormat:@"'%s' has %d characters.", string, length]];
}

tlunter · Accepted Answer · 2011-05-15 05:09:21Z

1

[outputField setStringValue:[NSString stringWithFormat:@"%@ has %@ characters.", string, length]];

answered May 15, 2011 at 5:09

tlunter

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4 Comments

tlunter Over a year ago

Could you update your original post with the updated code that you are using? This way I could help you further.

ian Over a year ago

There you go. string is being set because if I do something like string = @"test"; and output it then it works fine. Just not in the stringWithFormat

tlunter Over a year ago

Use my code that I used above. NSString isn't an %s, it's a %@ because it is a Obj-C object.

ian Over a year ago

Yea it crashes if I use %@ for the int but %@ works for the string thanks!

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