Implementing interface in Class

[Thomas Markl]

Implementing interface in Class
What did I wrong?

interface Engine {
   void start();  //only method head, no body {}
   void stop();
}
public class Car1 implements Engine {
   void start()   {System.out.println("Start"); }
   void stop()    {System.out.println("Stop"); }
}

C:\Java\EigeneJavaProgramme>javac Car1.java 
Car1.java:7: stop() in Car1 cannot implement stop() in Engine; 
attempting to assign weaker access privileges; was public
public class Car1 implements Engine {
       ^
1 error

Thanks for your answers.
Thomas.
[ edited to preserve formatting of error message -ds ]
[ August 12, 2002: Message edited by: Dirk Schreckmann ]

[Anonymous]

try
public interface blabla{}
cause default modifier is only accessable for a package. And your class was public.
I think this caused the error

[Jim Yingst]

No, the interface may have default (package) access. This isn't a problem. However, inside an interface, all methods are implicitly public (i.e. even though they may not be declared as public). Thus when you implement the methods in a class, the implementing methods must be public as well. And inside a class, you must explicitly declare a method to be public, in order to make it so.