Input:
[IX, VIII]
Desired Output:
[VIII, IX]
The output of stage 0
[8, 9]
I create a function to return the decimal value of a roman numeral then I have another function for sorting the numbers according to the increasing order.
I am stuck on the point of how to return the sorted decimal vector to the roman number.
Here is a sample of my code.
static int romanToDecimal(String romanNumber){...
}
static List<String> sortedList(List<String> number) {
Vector<Integer> v = new Vector<Integer>();
int size = number.size();
for (int i = 0; i < size; i )
v.add(romanToDecimal(number.get(i)));
Collections.sort(v); //stage 0
}
CodePudding user response:
You can use the Comparator
util class to compare by the actual numeral value:
static void sortRomanNumerals(List<String> romanNumerals){
romanNumerals.sort(Comparator.comparing(Main::romanToDecimal));
}