Mahbubur Rahman iamcrypticcoder

I hereby claim:

To claim this, I am signing this object:

	import Foundation

	class CommandExecutor {
	var nextCommands = [Command]()
	var executedCommands = [Command]()

	init() {

	}

	import Foundation

	var book1: Book = Book()
	var executor: CommandExecutor = CommandExecutor()
	executor.addCommand(BuyCommand(book1))
	executor.runCommand()
	print("Current owner: \(book1.currentOwner!)")

	executor.addCommand(GiftFriendCommand(book1, "Mahbub"))
	executor.addCommand(SellCommand(book1))

	public class SupplierDemo {

	static class Car {
	String brand;
	int engineCC;
	int wheelCount;
	int price;

	public Car(String brand, int engineCC, int wheelCount, int price) {
	this.brand = brand;

	public class PredicateDemo {

	static class Person {
	String name;
	int age;
	String gender;

	public Person(String name, int age, String gender) {
	this.name = name;
	this.age = age;

	public class ConsumerDemo {

	static class Point {
	Double x, y;

	public Point(Double x, Double y) {
	this.x = x;
	this.y = y;
	}
	}

	public class FunctionDemo {

	static Function<String, String> shortName = (s) -> {
	if (null == s \|\| s.length() == 0) return "Unknown";
	String[] splits = s.split(" ");
	String ret = splits[0];
	if (splits.length >= 2) ret += " " + splits[1].substring(0, 1) + ".";
	return ret;
	};

	#include <iostream>
	#include <vector>
	#include <math.h>

	using namespace std;

	#define READ(x) freopen(x, "r", stdin)
	#define WRITE(x) freopen(x, "w", stdout)

	#define PB push_back