Classes, compilation error

[l flipboi l]

Hello Everyone!

I'm new to Java and I was wondering, why isn't this printing correctly? I get these errors:

If I change class CreateFamily to class Main it works, but how can I make it work using CreateFamily class?

run:
Exception in thread "main" java.lang.NoClassDefFoundError: javaapplication1/Main
Caused by: java.lang.ClassNotFoundException: javaapplication1.Main
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)

class Family{

    String lastname;
    String firstname;
    int age;

    //constructor
    Family(){
        lastname = " ";
        firstname = " ";
        age = 0;

    }

}

class CreateFamily {


    public static void main(String arguments[]) {
        Family f1, f2;

        f1 = new Family();
        f1.lastname = "smith";
        f1.firstname = "jack";
        f1.age = 99;
        System.out.println(f1.firstname + " " + f1.lastname +
                           " is " + f1.age + " years old");

        f2 = new Family();
        f2.lastname = "doe";
        f2.firstname = "sally";
        f2.age = 39;
        System.out.println(f2.firstname + " " + f2.lastname +
                           " is " + f2.age + " years old");

    }
}

[NRitH]

Put main() in the Family class, delete the CreateFamily class, then run

java Family

on the command line.

[JosAH]

Exception in thread "main" java.lang.NoClassDefFoundError: javaapplication1/Main
Caused by: java.lang.ClassNotFoundException: javaapplication1.Main

Given the error message it seems to me that you're trying to run a class Main in package javaapplication1. I can't see a class Main and I can't see a package definition javaapplication1. b.t.w. none of the classes you've shown us are public.

kind regards,

Jos