ways to concatenate strings

gistfile1.m

// Different ways to concatenate strings

//
// Method 1: Using stringByAppendingString
//

NSString *string1 = @"First Text ";
NSString *string2 = @"Joined With Second";

NSString *stringAppendResult = [string1 stringByAppendingString:string2];

// Result: First Text Joined With Second
NSLog(@"stringAppendResult: %@", stringAppendResult);


//
// Method 2: Using literals (fancy new technique in the latest version of Objective-C)
//
NSString *concatWithLiterals = @"This " @"shows " @"how you would " @"concatenate a bunch of strings!";

// Result: This shows how you would concatenate a bunch of strings!
NSLog(@"with literals: %@", concatWithLiterals);


//
// Method 3: If you're working with NSMutableString (NSString contents cannot be changed once you set it)
//
NSMutableString *mutableString = [NSMutableString stringWithString:@"Hello there, "];
NSString *regularString = @"this is an third example.";

// Contents of mutableString1 is modified but string2 remains unchanged
[mutableString appendString:regularString];

// Result: Hello there, this is an third example.
NSLog(@"with NSMutableString: %@", mutableString);