Java

• Objects, by default, go in the heap

Builders

Enums

public enum Days = { MONDAY, TUESDAY, WEDNESDAY, THURSDAY, … }

public enum Cereals = { FRUIT_LOOPS(10, 2.9), COCOA_PUFFS(20, 3); }

final int tasteLevel; final double price;

Cereals(int tasteLevel, double price) { this.tasteLevel = tasteLevel; this.price = price; }