Question: /** * * @return the longest sequence of consecutive trades where stock lost value * return null if stock never lost value on any given
/**
*
* @return the longest sequence of consecutive trades where stock lost value
* return null if stock never lost value on any given day
*/
public ArrayList
return null; //to be completed
}
/**
*
* @param d1
* @param d2
* @return the percentage change in stock between the adjusted closing prices two dates, as a Double object
* return null if d1 is later than d2
*
* if d1 doesn't exist in the list, but there are dates before AND after it in the list, use the last date before it.
* if d2 doesn't exist in the list, but there are dates before AND after it in the list, use the last date before it.
*
* if d1 doesn't exist in the list and either a date before OR a date after it is not in the list, return null.
* if d2 doesn't exist in the list and either a date before OR a date after it is not in the list, return null.
*/
public Double getPercentageChangeByDateRange(Date d1, Date d2) {
if (d1.compareTo(d2) == 1) {
return null;
}
for (int i = 0; i < data.size(); i++) {
if (d1.equals(data.get(i).date) == false){
}
}
return null; //to be completed
}
/**
*
* @return a list of list of DailyTrade objects that holds all trades from a given month in a sublist.
* Note that -
* a. the sublists should be in chronological order
* b. the trades within the sublists should be in chronological order
* c. entries for different months should (obviously) be in separate sub-lists
* d. entries of the same month but different years should be separate sub-lists
*/
public ArrayList
return null; //to be completed
}
}
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