Is this code in a class block?
eg
class Class1
{
private static boolean number(String Number, Interface, theStub){
try{
String List = theStub.getnumber();
StringTokenizer tokens = new StringTokenizer (List);
while (tokens.hasMoreTokens())
if (tokens.nextToken().equalsIgnoreCase(Number))
return true;
}catch (Exception e) {System.out.println("Error : " + e); }
return false;
}
}