How to convert NSInteger to NSString?
Easy way to do: NSInteger value = x; NSString *string = [@(value) stringValue]; Here the @(value) converts the given NSInteger to an NSNumber object for which you can call the required function, stringValue . NSInteger value = 12; NSString * string = [NSString stringWithFormat:@”%0.0f”, (float)value];
What is string in objective c?
Strings are collections of characters that are grouped together to form words or sentences. The purpose of this chapter is to cover the key aspects of string creation, comparison and manipulation in Objective-C using the Foundation Framework’s NSString class.
What is NSNumber in Objective C?
NSNumber is a subclass of NSValue that offers a value as any C scalar (numeric) type. It defines a set of methods specifically for setting and accessing the value as a signed or unsigned char , short int , int , long int , long long int , float , or double or as a BOOL .
What is NSInteger in Swift?
NSInteger is a type definition that describes an integer – but it is NOT equivalent to int on 64-bit platforms. You can examine the typedef by cmd-clicking on NSInteger in Xcode. It has methods to convert between different types and methods to retrieve a string representation of your numeric value.
What is difference between string and NSString in Swift?
NSString : Creates objects that resides in heap and always passed by reference. String: Its a value type whenever we pass it , its passed by value. like Struct and Enum, String itself a Struct in Swift. String is automatically bridged to Objective-C as NSString.
How do I append to NSString?
5 Answers. If you can append to the end of a string, you can prepend to the beginning of the string. You can use stringWithFormat too: NSString *A = @”ThisIsStringA”; NSString *B = @”ThisIsStringB”; B = [NSString stringWithFormat:@”%@%@”,A,B];
What is NSMutableArray Objective C?
The NSMutableArray class declares the programmatic interface to objects that manage a modifiable array of objects. This class adds insertion and deletion operations to the basic array-handling behavior inherited from NSArray . NSMutableArray is “toll-free bridged” with its Core Foundation counterpart, CFMutableArray .
What is the difference between string and NSString?
NSString : Creates objects that resides in heap and always passed by reference. String: Its a value type whenever we pass it , its passed by value. like Struct and Enum, String itself a Struct in Swift. But copy is not created when you pass.
Is NSInteger primitive?
5 Answers. NSNumber is a class, not a primitive, and is used when you need to put raw numbers into dictionaries, arrays, or otherwise encapsulate them. NSInteger , NSUInteger , CGFloat , etc are simple types and correspond (on 32-bt systems like the iPhone) to int , unsigned int and float .
What is an NSString in Swift?
A string is a series of characters, such as “Swift” , that forms a collection. Strings in Swift are Unicode correct and locale insensitive, and are designed to be efficient. You can create new strings using string literals or string interpolations. A string literal is a series of characters enclosed in quotes.
What is the difference between string and NSString in iOS?
2014-04-02 07:35:51.344 iOS-Tutorial [1255:a0b] String: Returns an initialized NSString object that contains no characters. 2014-04-02 07:36:46.406 iOS-Tutorial [1269:a0b] String: Returns an initialized NSString object containing a given number of bytes from a given buffer of bytes interpreted in a given encoding.
How to convert nsinteger to string value in Java?
NSInteger value = x; NSString *string = (value) stringValue]; Here the @ (value) converts the given [&NSInteger&] to an [&NSNumber&] object for which you can call the required function, stringValue.
What is the use of NSString in Objective C?
Like NSNumber, NSString is also immutable type. It’s used to represent text in Objective-C. NSString provides built-in support for Unicode, which means that we can include UTF-8 characters directly in string literals. stringWithFormat: class method is useful for generating strings that are composed of variable values.
How do you use nsnsstring?
NSString’s search methods return an NSRange struct, which consists of a location and a length field. The location is the index of the beginning of the match, and the length is the number of characters in the match. If no match is found, location will contain NSNotFound.