java - error about returning a string from a String method -

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• how convert number words in java 23 answers

why getting error in both of these methods 'this method must return type string...when returning type string. trying stupid ninety-nine bottles of beer on wall question i'm sure had learning java. in book instead of outputting numbers (ie.99) has print out words(ninety-nine). tried break down in these 2 methods, saying needs return string , are. had them bracketed out, nothing changed.

public string rounds() {     if(beer>89)         return "ninety";     else if(beer>79)         return "eighty";     else if(beer>69)         return "seventy";     else if (beer>59)         return("sixty");     else if (beer>49)         return ("fifty");     else if (beer>39)         return("forty");     else if(beer>29)         return("thirty");     else if(beer>19)         return("twenty");     else if(beer==19)         return "nineteen";     else if(beer==18)         return "eighteen";     else if (beer==17)         return("seventeen");     else if (beer==16)         return ("sixteen");     else if (beer==15)         return("fifteen");     else if(beer==14)         return("fourteen");     else if(beer==13)         return("thirteen");     else if(beer==12)         return("twelve");     else if(beer==11)         return("eleven");     else if(beer==10)         return("ten");     }  private string ones() {     if(beer % 10==9)         return("-nine");     else if(beer % 10==8)         return("-eight");     else if(beer % 10==7)         return("-seven");     else if(beer % 10==6)         return("-six");     else if(beer % 10==5)         return("-five");     else if(beer % 10==4)         return("-four");     else if(beer % 10==3)         return("-three");     else if(beer % 10==2)         return("-two");     else if(beer % 10==1)         return("-one");      else if(beer % 10==0)         return("zero");     }  } 

because "if-else" block not covering every condition. think method "rounds" return if "beer" value equals '9'? have add "else" block @ , one;

    else                        // have cover conditions         return "none";          // should add these 

complete solution below;

public class testreturn {      public static void main(string[] args) {         int beer = 69;         system.out.println( beer + " : " + rounds(beer) + ones(beer));      }      public static string rounds(int beer) // beer must declared either parameter or local variable     {         if (beer > 89)             return "ninety";         else if (beer > 79)             return "eighty";         else if (beer > 69)             return "seventy";         else if (beer > 59)             return ("sixty");         else if (beer > 49)             return ("fifty");         else if (beer > 39)             return ("forty");         else if (beer > 29)             return ("thirty");         else if (beer > 19)             return ("twenty");         else if (beer == 19)             return "nineteen";         else if (beer == 18)             return "eighteen";         else if (beer == 17)             return ("seventeen");         else if (beer == 16)             return ("sixteen");         else if (beer == 15)             return ("fifteen");         else if (beer == 14)             return ("fourteen");         else if (beer == 13)             return ("thirteen");         else if (beer == 12)             return ("twelve");         else if (beer == 11)             return ("eleven");         else if (beer == 10)             return ("ten");         else                        // have cover conditions             return "none";          // should add these     }      private static string ones(int beer) // beer must declared either parameter or local variable     {         if (beer % 10 == 9)             return ("-nine");         else if (beer % 10 == 8)             return ("-eight");         else if (beer % 10 == 7)             return ("-seven");         else if (beer % 10 == 6)             return ("-six");         else if (beer % 10 == 5)             return ("-five");         else if (beer % 10 == 4)             return ("-four");         else if (beer % 10 == 3)             return ("-three");         else if (beer % 10 == 2)             return ("-two");         else if (beer % 10 == 1)             return ("-one");         else if (beer % 10 == 0)             return ("zero");         else                        // have cover conditions             return "none";          // should add these     } } 

and here output;

69 : sixty-nine