public class Product {
	private int productID;
	private String productName;
	private int productPrice;
	private int productAmount;
	public Product(int id, String name, int price, int amt) {
		this.productID = id;
		this.productName = name;
		this.productPrice = price;
		this.productAmount = amt;
	}
	public int getID() {
		return this.productID;
	}
	public String getName() {
		return this.productName;
	}
	public int getPrice() {
		return this.productPrice;
	}
	public int getAmount() {
		return this.productAmount;
	}
	public void reduceAmount(int amt) {
		if (this.productAmount < amt) {
			System.out.println("Not enough of product " + this.productID + "(" + this.productName + ") available!");
			return;
		}
		this.productAmount -= amt;
	}
	public void increaseAmount(int amt) {
		this.productAmount += amt;
	}
}