idcard.java

本程序为java源代码

package idcard;
import framework.*;

public class IDCard extends Product {
    private String owner;
    IDCard(String owner) {
        System.out.println("建立" + owner + "的卡。");
        this.owner = owner;
    }
    public void use () {
        System.out.println("使用" + owner + "的卡。");
    }
    public String getOwner() {
        return owner;
    }
}