Java: Classes do not find each other in package (factory design pattern) -

i have 3 different classes:

woman.java

package human; public class woman extends human{     private final string pnr;     private final string namn;      public woman(string n, string p){         namn = n;         pnr = p;     }     public string tostring(){         return "my name "+namn+" , woman.";     }  } 

man.java

package human; public class man extends human{     private final string pnr;     private final string namn;      public man(string n, string p){         namn = n;         pnr = p;     }     public string tostring(){         return "my name "+namn+" , man.";     }    } 

human.java

package human; public abstract class human{     public static human create(string namn, string pnr){         char nastsist_char = pnr.charat(9); // takes second last char in pnr         string nastsist_string = character.tostring(nastsist_char);         float siffra = float.parsefloat(nastsist_string);   //converts float         if ((siffra % 2) == 0){                 //checks if             return new man(namn, pnr);                   }         else{             return new woman(namn, pnr);         }     } } 

when try compile file human.java, error

cannot find symbol: class man,

and

cannot find symbol: class woman.

when try compile file man.java or woman.java, error

cannot find symbol: class human.

no changing of public/private visibility of classes have helped. files located in directory called human.

what problem here?

i should add goal i'm trying achieve have abstract class human can not instantiated, , in class want have create method returns instances of either man or woman depending on pnr. also, not want man or woman possible instantiate in other way through create method.

thanks

there's no problem code or packaging, problem elsewhere. how compile? i'm guessing might doing

javac human/human.java 

which not work, since man , woman not on classpath , not known java compiler when working on human. should include these when compiling:

javac human/*.java 

cheers,