public class Item {

final private String name;

final private double price;

public Item(String name, double price) {

this.name = name;

this.price = price;

}

public String getName() {

return name;

}

public double getPrice() {

return price;

}

@Override

public boolean equals(Object o) {

if (this == o) return true;

if (o == null || getClass() != o.getClass()) return false;

Item item = (Item) o;

if (Double.compare(item.price, price) != 0) return false;

return name != null ? name.equals(item.name) : item.name == null;

}

@Override

public int hashCode() {

int result;

long temp;

result = name != null ? name.hashCode() : 0;

temp = Double.doubleToLongBits(price);

result = 31 * result + (int) (temp ^ (temp >>> 32));

return result;

}

}