访问另一个类的公共方法的问题

Question

I currently use two classes, ircBot(extends pircbot ) and ircRobotti(extends Robotti) .

I'm trying to compile the class files on a shell but i'm getting an error:

./ircBot.java:26: cannot find symbol symbol : method lisaaJonoon(int) location: class Robotti annaRobo().lisaaJonoon(suunta);

lisaaJonoon() is defined in ircRobotti and it's public.

Any ideas what might cause the error?

Answer 1

lisaaJonoon(int)有一个int类型的参数，它与lisaaJonoon()不同。

Answer 2

A public method from one class will be accessible in other class if you make sure that

1: Both classes are in same package. If they are in different packages then you need to import the class whose method you are calling.

2: The class whose method is being called, should also be compiled.

3: Make sure, method signatures are same as in called method. (ie the number of arguments an d their type)

Answer 3

Just a guess but as you are compiling on a shell you're probably not setting the classpath correctly. How are you invoking javac?