alex-ber

import java.util.Objects;

public class Pizza implements Delivarable {
  

  private DelivarableStatus status = DelivarableStatus.IN_PROGRESS;
  private PizzaDeliveryStrategy strategy;


  public Pizza(PizzaDeliveryStrategy strategy){

alex-ber

import java.util.Objects;

public class Pizza implements Delivarable {
  public enum PizzaStatus {
    IN_PROGRESS,
    READY,
    DELIVERED;
  }

  private PizzaStatus pizzaStatus = PizzaStatus.IN_PROGRESS;

alex-ber

public enum PizzaDeliveryStrategy implements DeliveryStrategy<Pizza> {
    EXPRESS {
        @Override
        public void deliver(Pizza pz) {
            System.out.println("Pizza will be delivered in express mode");
        }
    },
    NORMAL {
        @Override
        public void deliver(Pizza pz) {

alex-ber

public interface Deliverable {
  public void deliver();
  
  default public isDeliverable(){
    return true;
  }
  
  public enum DeliverableStatus {
    IN_PROGRESS,
    READY,

alex-ber

public enum Planet {
    MERCURY (3.303e+23, 2.4397e6),
    VENUS   (4.869e+24, 6.0518e6),
    EARTH   (5.976e+24, 6.37814e6),
    MARS    (6.421e+23, 3.3972e6),
    JUPITER (1.9e+27,   7.1492e7),
    SATURN  (5.688e+26, 6.0268e7),
    URANUS  (8.686e+25, 2.5559e7),
    NEPTUNE (1.024e+26, 2.4746e7),
    PLUTO   (1.27e+22,  1.137e6),

alex-ber

public enum Planet {
    MERCURY (3.303e+23, 2.4397e6),
    VENUS   (4.869e+24, 6.0518e6),
    EARTH   (5.976e+24, 6.37814e6),
    MARS    (6.421e+23, 3.3972e6),
    JUPITER (1.9e+27,   7.1492e7),
    SATURN  (5.688e+26, 6.0268e7),
    URANUS  (8.686e+25, 2.5559e7),
    NEPTUNE (1.024e+26, 2.4746e7),
    PLUTO   (1.27e+22,  1.137e6);

alex-ber

public enum Operation {
    PLUS, MINUS, TIMES, DIVIDE;

    // Do arithmetic op represented by this constant
    public double eval(double x, double y){
        switch(this) {
            case PLUS:   return x + y;
            case MINUS:  return x - y;
            case TIMES:  return x * y;
            case DIVIDE: return x / y;

alex-ber

public enum Operation {
  PLUS   { double eval(double x, double y) { return x + y; } },
  MINUS  { double eval(double x, double y) { return x - y; } },
  TIMES  { double eval(double x, double y) { return x * y; } },
  DIVIDE { double eval(double x, double y) { return x / y; } };

  // Do arithmetic op represented by this constant
  public abstract double eval(double x, double y);
}

alex-ber

public class MyClass {
	private static MyClass myClass = new MyClass();
	private static MyClass myClass2 = new MyClass();

	public MyClass() {
		System.out.println(myClass);
		System.out.println(myClass2);
	}
	public static void main(String[] args) {

alex-ber

stdlogging.initStream(errLogger, adapter_cls='alexber.utils.stdlogging.StreamToLogger')