How to print a String object within a String in Objective C [duplicate]

Question

I have a String object:

NSString* name = @"John Smith";

and another String object:

NSString* intro =@"Hello this is ";

I want to be able to change the name from the UI make it within the introduction, so I tried:

_introduction = (@"Hello this is, %@", _name);

However, only the name is getting printed when I do:

NSlog(@"%@",_introduction);

I want both sentences to be printed by printing the intro object.

It's not the same question. I tried the answer included in the other question. However, the answer I was looking for is the one below. — Fady E
– Fady E, Commented Mar 26, 2019 at 21:12
The answer? There are many. Look at the second answer, it covers your question. It's exactly the same question — vadian
– vadian, Commented Mar 26, 2019 at 21:19

Kevin DiTraglia · Accepted Answer · 2019-03-26 19:33:34Z

1

I'm not sure what (@"Hello this is, %@", _name); does or if that's even correct syntax, but typically to do what you're trying, you'd do something like this:

introduction = [NSString stringWithFormat:@"%@ %@", intro, name];

answered Mar 26, 2019 at 19:33

Kevin DiTraglia

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2 Comments

Fady E Over a year ago

I thought this is how enter an object within a String. Thank you for helping.

Amin Negm-Awad Over a year ago

It is in correct syntax. The komma operator , evaluates both operands (@"Hello This is, %@" and _name), throws away the result of the first operand and returns the result of the second operand (_name). The parenthesis do simply nothing. Since the first operand is side-effect free, it is simply equivalent to introduction = _name.

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