java compile issue. Probably simple

Question

It's been quite a while since I've used java extensively, and I'm having trouble with something I think is probably quite simple. Code is on a linux system, and I'm using javac and other command line tools.

Two files, the second won't compile. Here's the first, named ITranslator.java:

package org.helloopensource.greetings;

public interface ITranslator {
    public abstract String translate(String fromLanguage, String toLanguage, String word);
}

Here's the second, named Greeting.java:

package org.helloopensource.greetings; 

public class Greeting {
    private ITranslator translator;

    public Greeting(ITranslator translator) {
            this.translator = translator;
     }

    public String sayHello(String language, String name) {
            return translator.translate("English", language, "Hello") + " " + name;
    }
}

When I try to compile, I get:

> javac -classpath `pwd` Greeting.java
Greeting.java:4: cannot find symbol
symbol  : class ITranslator
location: class org.helloopensource.greetings.Greeting
    private ITranslator translator;
            ^
Greeting.java:6: cannot find symbol
symbol  : class ITranslator
location: class org.helloopensource.greetings.Greeting
    public Greeting(ITranslator translator) {
                    ^
2 errors

Like I said, I suspect this is something simple, or something dumb I'm doing wrong. Any help would be greatly appreciated.

Thanks,

Sean.

Answer 1

Java requires that class files be found in a subdirectory that matches their package names. So:

    mkdir -p org/helloopensource/greetings
    mv *.java org/helloopensource/greetings/
    javac -classpath . org/helloopensource/greetings/*.java

should do it.