java Return语句没有以正确的格式返回输出

Question

/**
 * Computes and returns the Date on which Thanksgiving will fall 
 * in a given year.
 *
 * NOTE: By law, Thanksgiving is the 4th Thursday in November
 *
 * @param year the year for which to compute the date of Thanksgiving
 * @return the Date of Thanksgiving for the specified year
 */

     public Date getThanksgiving(int year)
     {    

        int weekcount = 0 ; // record the amount of weeks that has passed  

        Date thanksgiving = new Date (11 , 1 , year) ;

        while ( weekcount < 4 )
           {
              thanksgiving.next(); // add one to date 

          if (thanksgiving.getDayOfWeek().equals("Thursday"))// check if the day of week is Thursday 
           {
               weekcount++ ;    // add one to weekcount 
           }           

           if (weekcount == 4)
           {

           System.out.println(thanksgiving.getLongDate());

           } 


           }  



           return thanksgiving ;
     }

我不应该使用println语句，而是应该使用return语句返回正确的日期。问题是我得到了这个“Date@2f4d3709“作为我的输出。 日期类--http://users.cis.fiu.edu/~shawg/2210/Date.html

Answer 1

如果试图调用^{} with an ^{} argument，则该对象将使用^{}转换为String。由于Date类不重写toString()，因此将使用java.lang.Object提供的默认实现

你可以用三种方法解决这个问题

1. 您需要调用Date.getLongDate()方法并将返回的值传递给输出，而不是整个对象
2. 将getThanksgiving(int)的返回值更改为字符串并返回Date.getLongDate()
3. 在Date类中重写toString()，如下所示

例如：

@Override
public String toString(){
  return getLongDate();
}