まずはシンプルなItemクラス。 public class Item { private String name = null; private double price = 0.0; private String descr = ""; public Item(String name, double price) { this.name = name; this.price = price; } public Item() { } public String getName() { return name; } public double getPrice() { return price; } public String getDescr() { return descr; } public void setDescr(String descr) { this.descr = desc
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