Few Errors Using Swift -

i trying build small random number guessing game using command line tool in xcode.

i have added image of errors come xcode ide

import foundation  var randomnumber = 1 var userguess = 1 var continueguessing = true var keepplaying = true var input = ""  while (keepplaying) {     randomnumber = int(arc4random_uniform(101)) //to random number between 0-100     println(" random number guess is: \(randomnumber)"  );     while (continueguessing) {         println(" pick number between 0 , 100. ")         input = nsstring(data: nsfilehandle.filehandlewithstandardinput().             availabledata,encoding:nsutf8stringencoding)! //get keyboard input         input = input.stringbyreplacingoccurrencesofstring("\n", withstring: "", options:nsstringcompareoptions.literalsearch, range: nil)//strip off the/n         userguess = input.toint()!         if (userguess == randomnumber) {             continueguessing = false             println("correct number!");          } //nested if statement         else if (userguess > randomnumber){             //user guessed high             println("your guess high");         }      else {         //no reason check if userguess < random. has be.         println("play again? y or n");         input = nsstring(data: nsfilehandle.filehandlewithstandardinput().availabledata,             encoding:nsutf8stringencoding!             input = input.stringbyreplacingoccurrencesofstring("\n", withstring: "", options: <#nsstringcompareoptions#>.literalsearch, range: nil);             }  if (input == "n" || input == "n"){             keepplaying = false         }         continueguessing = true 

you've got 2 small mistakes:

you have newline here , need cast string - change this:

input = nsstring(data: nsfilehandle.filehandlewithstandardinput().         availabledata,encoding:nsutf8stringencoding)! 

to this:

input = nsstring(data: nsfilehandle.filehandlewithstandardinput().availabledata, encoding: nsutf8stringencoding)! string 

you left xcode autogenerated placeholder nsstringcompareoptions - change this:

input = input.stringbyreplacingoccurrencesofstring("\n", withstring: "", options: <#nsstringcompareoptions#>.literalsearch, range: nil); 

to this:

input = input.stringbyreplacingoccurrencesofstring("\n", withstring: "", options: nsstringcompareoptions.literalsearch, range: nil) 

here full snippet corrections above:

while (keepplaying) { randomnumber = int(arc4random_uniform(101)) //to random number between 0-100 println(" random number guess is: \(randomnumber)"  ); while (continueguessing) {     println(" pick number between 0 , 100. ")     input = nsstring(data: nsfilehandle.filehandlewithstandardinput().availabledata, encoding: nsutf8stringencoding)! string     input = input.stringbyreplacingoccurrencesofstring("\n", withstring: "", options:nsstringcompareoptions.literalsearch, range: nil)//strip off the/n     userguess = input.toint()!     if (userguess == randomnumber) {         continueguessing = false         println("correct number!");      }         //nested if statement     else if (userguess > randomnumber){         //user guessed high         println("your guess high");     }      else {         //no reason check if userguess < random. has be.         println("play again? y or n");         input = nsstring(data: nsfilehandle.filehandlewithstandardinput().availabledata, encoding: nsutf8stringencoding)! string             input = input.stringbyreplacingoccurrencesofstring("\n", withstring: "", options: nsstringcompareoptions.literalsearch, range: nil);     }  if (input == "n" || input == "n"){         keepplaying = false     }     continueguessing = true