Java

Question

Return the index of the first Roman Numeral in s or -1 if s contains no Roman Numerals

Answer 1

So I decided that, for a char to be a roman numeral it has to be capitalized, the rest is simple

https://code.sololearn.com/c0HxzWIr8gp9/?ref=app

Answer 2

Is this a challenge, or you need help with a code?

Answer 3

I need a help. Thanks!

Answer 4

Okay, so you've got this code, you ask for an input? and then return the index of the first capitalized I, X, L or M, is that right?

Answer 5

I know but i dont know how to return the FIRST of roman numerals in a string? How to know it is the first?

Answer 6

could you help me to fix this code?
https://code.sololearn.com/crY91k4Bgx7e/#java

Answer 7

I fixed it as much as I could, take a look, it works, but not as desired.

My recommendation is to convert the char in the isRomanNumeral to a string, strings have a built in method to compare themselves to others strings, in this case, it is useful

Try this:

String str = "" + c; // c is the method parameter

if( str.equals("I") )
return true;

https://code.sololearn.com/c8piElA1PR2O/?ref=app