Java program not starting (Error: Could not find or load main class)?

Question

Java

The simplest program from the book "Learning Java, 2nd edition" by K. Sierra does not start.
I do everything according to the instructions.

import java.awt.*;
import java.awt.event.*;
class Party {
  public void buildInvite() {
   Frame f = new Frame();
   Label l = new Label("Вечеринка у Децла дома");
   Button b = new Button("Ваша ставка");
   Button c = new Button("Сбросить");
   Panel p = new Panel();
   p.add(l);
  } //еще код
}

But the console throws an error.

Please tell me where to look for the error.

Answer 1

The entry point for running the program is the method

public static void main(String[] args) {
   //тут Ваш код
}

There is no such method in your class, so Java swears