eclipse写java private Date date 提示Date无法解析为类型_鼻孔猫加油站_date无法解析为类型

package com.sanqing.model;

public class BookInfo 
{
	private String ISBN;               //图书编号
	private String typeid;             //类别编号
	private String writer;             //作者
	private String translater;         //译者
	private String publisher;          //出版社
	private Date date;                 //出版日期
	private Double price;              //书籍价格
	private String bookname;           //图书名称
这里省略setter and getter
 }

package com.sanqing.model;

public class BookIn