//: flyweight:ManyObjects.java class DataPoint { private static int count = 0; private int id = count++; private int i; private float f; public int getI() { return i; } public void setI(int i) { this.i = i; } public float getF() { return f; } public void setF(float f) { this.f = f; } public String toString() { return "id: " + id + ", i = " + i + ", f = " + f; } } public class ManyObjects { static final int size = 1000000; public static void main(String[] args) { DataPoint[] array = new DataPoint[size]; for(int i = 0; i < array.length; i++) array[i] = new DataPoint(); for(int i = 0; i < array.length; i++) { DataPoint dp = array[i]; dp.setI(dp.getI() + 1); dp.setF(47.0f); } System.out.println(array[size -1]); } } ///:~