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How do I declare a simple string "test" to a variable?
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NSString from C Strings and Data To create an NSString object from a C string, you use methods such as initWithCString:encoding: . You must correctly specify the character encoding of the C string. Similar methods allow you to create string objects from characters in a variety of encodings.
You can use %@ for all objects including NSString. This will in turn call the objects description method and print the appropriate string.
You want: NSString *firstLetter = [codeString substringToIndex:1];
A static, plain-text Unicode string object that bridges to String ; use NSString when you need reference semantics or other Foundation-specific behavior.
A C string is just like in C.
char myCString[] = "test"; An NSString uses the @ character:
NSString *myNSString = @"test"; If you need to manage the NSString's memory:
NSString *myNSString = [NSString stringWithFormat:@"test"]; NSString *myRetainedNSString = [[NSString alloc] initWithFormat:@"test"]; Or if you need an editable string:
NSMutableString *myMutableString = [NSMutableString stringWithFormat:@"test"]; You can read more from the Apple NSString documentation.
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