类中有属性：carName String，carType String，carprice Double，carcount Integer，carDate Date，封装这个类，重写toString（）方法和equals（）方法

可以封装一个名为`Car`的类，该类包含属性`carName`、`carType`、`carPrice`、`carCount`和`carDate`。以下是一个示例实现：

import java.util.Date;

public class Car {
    private String carName;
    private String carType;
    private Double carPrice;
    private Integer carCount;
    private Date carDate;

    public Car(String carName, String carType, Double carPrice, Integer carCount, Date carDate) {
        this.carName = carName;
        this.carType = carType;
        this.carPrice = carPrice;
        this.carCount = carCount;
        this.carDate = carDate;
    }

    public String getCarName() {
        return carName;
    }

    public void setCarName(String carName) {
        this.carName = carName;
    }

    public String getCarType() {
        return carType;
    }

    public void setCarType(String carType) {
        this.carType = carType;
    }

    public Double getCarPrice() {
        return carPrice;
    }

    public void setCarPrice(Double carPrice) {
        this.carPrice = carPrice;
    }

    public Integer getCarCount() {
        return carCount;
    }

    public void setCarCount(Integer carCount) {
        this.carCount = carCount;
    }

    public Date getCarDate() {
        return carDate;
    }

    public void setCarDate(Date carDate) {
        this.carDate = carDate;
    }

    @Override
    public String toString() {
        return "Car{" +
                "carName='" + carName + '\'' +
                ", carType='" + carType + '\'' +
                ", carPrice=" + carPrice +
                ", carCount=" + carCount +
                ", carDate=" + carDate +
                '}';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        Car car = (Car) o;

        if (!carName.equals(car.carName)) return false;
        if (!carType.equals(car.carType)) return false;
        if (!carPrice.equals(car.carPrice)) return false;
        if (!carCount.equals(car.carCount)) return false;
        return carDate.equals(car.carDate);
    }

    @Override
    public int hashCode() {
        int result = carName.hashCode();
        result = 31 * result + carType.hashCode();
        result = 31 * result + carPrice.hashCode();
        result = 31 * result + carCount.hashCode();
        result = 31 * result + carDate.hashCode();
        return result;
    }
}

这个`Car`类包含了构造方法用于初始化属性，以及各个属性的getter和setter方法。重写了`toString()`方法，可以将对象转换为字符串表示。重写了`equals()`方法，用于比较两个对象是否相等。

你可以根据需要创建`Car`对象，并使用相应的方法进行属性的访问和操作。例如：

Car car = new Car("BMW", "Sedan", 50000.0, 10, new Date());
System.out.println(car.toString());

这将打印出`Car`对象的字符串表示。你还可以使用`equals()`方法来比较两个`Car`对象是否相等。