Doubt in java interface?

Question

This is my program
interface values{
String piee = "3.14";
String alphaa = "2";
String namee = "priya";

}
abstract class pickvalue{
String values;
}

class pie extends pickvalue
{
pie(String value)
{
this.values = value;

}
}
class alpha extends pickvalue
{
alpha(String value)
{
this.values = value;
}
}
class name extends pickvalue
{
name(String value)
{
this.values = value;

}
}
class MyInterAbsDemo {
public static void main(String[] args) {
name objname = new name("sfsa");
System.out.println(objname.values);
}

}
not only this program..all the program which use this interface are not working some run time error like
java.lang.NoClassDefFoundError: interfacedemo/MyInterAbsDemo
Exception in thread "main"

Java Result: 1
is comming...what is the prob with my interce related programs.
thanks

nobody there to answer

nobody there to answer

Answer 1

As I said elsewhere (you really should only ask the same question ONCE). Your immediate problem is that you are missing the "public" keyword. It goes in front of "class MyInterAbsDemo {".

Answer 2

you have to implement the interface class
(ie) class A implements b,