sets.put("心爽一夏",new Set("心爽一夏","388.0","120小时器械+游泳"));中的Set报错Cannot instantiate the type Set后面的Set也报错

package 考试;
/**

• 套餐管理类
• @author * */

import java.util.*;

public class SetManage {
static HashMapsets=new HashMap();
// 向集合中添加数据
static void SetManage() {

    sets.put("心爽一夏",new Set("心爽一夏","388.0","120小时器械+游泳"));
    sets.put("白领丽人",new Set("白领丽人","988.0","每月30小时器械+30小时瑜伽课+10小时私教体验"));
    sets.put("肌肉型男",new Set("肌肉型男","2888.0","120小时专业课程+60小时私教"));
    sets.put("瑜伽专修",new Set("瑜伽专修","3288.0","180小时瑜伽课程+赠饮料"));
    sets.put("室内攀岩",new Set("室内攀岩","5888.0","20次攀岩训练+赠人身意外险"));
}

java.util中的set是一个接口，接口不能用new来实例化，你要new一个实现这个接口的类，比如HashSet