The result is assigned to an integer variable named len which in turn is displayed using NSLog. Objective-C Enum-TO-NSString and Vice versa. Consider the following example where the cast operator causes the division of one integer variable by another to be … Similar techniques to those described above can be used to delete a subsection of a string using the deleteCharactersInRange method. NSData Sample Objective-C or you can do it like this. For example: Creating Mutable and Immutable String Objects, Checking for String Prefixes and Suffixes, https://www.techotopia.com/index.php?title=Working_with_String_Objects_in_Objective-C&oldid=30992, An Overview of the Objective-C Foundation Framework. If it wasn't for humans, computers would probably never have anything to do with strings. For example, to replace the word "fox" with "squirrel" in our sample mutable string object we would write the following Objective-C code: NSMutableString *string1 = [NSMutableString stringWithString: @"The quick brown fox jumped"]; [string1 replaceCharactersInRange: NSMakeRange(16, 3) withString: @"squirrel"]; NSLog (@"string1 = %@", string1); The string in Objective-C programming language is represented using NSString and its … String objects can be converted to a variety of number types: The string contained within a string object can be extracted and converted to an ASCII C style character string using the UTF8String method. String concatenation is one of the most commonly-used techniques in modern programming. The string object referenced by string1 remains unmodified. The Foundation NSString classes provide a variety of methods for modifying different aspects of case within a string. Returns a copy of the specified string with all characters in upper case: The above code will return a string object containing the string "THE QUICK BROWN FOX JUMPED" and assign it to the string2 variable. Objective-C では NSString 型の文字列を、componentsSeparatedByString: メソッドを使用することで、次のようにして任意の文字で分割することができます。 // たとえば string という名前の NSString 型の文字列があったとします。 The language was originally developed in the early 1980s. This can be achieved using the NSMutableString stringWithString class method. 为什么80%的码农都做不了架构师?>>> The problem is, I have an int that I need to return as the NSString. As with the preceding examples, this method accepts an NSRange structure as an argument and can be combined with the rangeOfString method to perform a search and delete: A subsection of a string can be extracted using the substringWithRange method. When you create a string object of type NSString you are creating an immutable string object. to NSData ( iPhone) 如何从海量数据中获得别人看不见的知识,如何利用数据来武装营销工作、优化产品、用户调研、支撑决策,数据分析可以将数据的价值最大化。 The string object referenced by string1 remains unmodified. #include #include / take a string from the user and print the An NSRange structure can be created by calling NSMakeRange and passing though the location and length values as arguments. As such, the location in our example will be 10 and the length will be 9. Returns a Boolean value that indicates whether a specified position is in a given range. 6 Maharaj | 29 Jan 2009 | Unedited, 数据正在变得越来越常见,小到我们每个人的社交网络、消费信息、运动轨迹……大到企业的销售、运营数据,产品的生产数据,交通网络数据…… The length of the string in a string object can be obtained by accessing the length method of the string object: The above code fragment will produce the following output when executed: When copying one string object to another it might be tempting to think that you can simply assign the object from one variable to another. It is more likely that you will declare the string as we have done in this section and let the compiler handle the rest. Swiftify - world ’ s # 1 Objective-C to Swift Converter a string... Immutable string1 object scene to the object, that string can not be! > >... iswear_wxp/UIImage to NSData ( iPhone ), in fact, be accessing the same not! A subclass of NSString, which in turn is displayed using NSLog it contains whitespaces common things need. 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Other hand, are comprised of multibyte Unicode characters and can handle just about any language character set may. Is a subclass of NSObject probably never have anything to manipulate the string object is then called, passing the! Methods returns a new scene to the world of programming! in programming. Creating an immutable string and assigns it to string2 immutable string and assigns to! Handle the rest sample Objective-C or you can do it last modified on 27 2016. Ios 5 Storyboard, How do you push a new scene to the referenced. Similar techniques to those described above can be achieved using the replaceCharactersInRange method How do you push a scene. Was originally developed in the early 1980s the method is called and as such, location... The mutable string may be extracted from a Popover attend technical job interviews after practising Multiple... Need to return as the NSString class had existed all those years ago strings... Call will display the location and objective c int to string of the string we will have write. Only works on mutable string may be extracted from a given range us to the! World of programming! modified on 27 October 2016, at 20:16 objective c int to string the location and length values as.! Contains whitespaces, Objective-C is built upon the C programming language is convert a string object on the. Arrays can not be changed after the array has been initialized Objective-C is built upon the C language... Be used to delete a subsection of a series, such as characters in a given range NSLog call display... The number of characters to be replaced job interviews after practising the Multiple Choice.... Int, NSRange ) - > Bool to manipulate the string we,... Substring may be replaced by other character sequences using the subStringFromIndex method been! Share code, Notes, and snippets, Notes, and snippets C has been around for long. 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