I can't find out why my code is returning 0, could someone please help?

Question

package tic.tac.toe;
import java.util.Scanner;
/**
*
* @author 25688
*/
public class TicTacToe {

/**
* @param args the command line arguments
*/
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.println("Average place of a word in the alphabet, enter a string in all caps and no numbers.");
String str;
str = keyboard.next();
double convo[];
String Alphabet = "0ABCDEFGHIJKLMNOPQRSTUVWXYZ";
int Sentlength = str.length();
int Counter = 0;
convo = new double[Sentlength];
for(char Letter; Counter >= Sentlength; Counter++ ){
Letter = str.charAt(Counter);
convo[Counter] = Alphabet.indexOf(Letter);
}
double temp = 0;
for(int counter = 0; counter >= Sentlength; counter++){
temp = temp + convo[counter];
}
double Result;
Result = temp / Sentlength;
System.out.println("Average alphabet placement of sentence is " + Result);

}

}

Answer 1

I think your for loop is wrong.
int counter = 0;
for(char letter; counter >= sentlength...
0 is not >= sentlength
--> counter < sentlength
If counter <= sentlength you get an error because of convo[counter] --> index starts at 0 and ends at length - 1

Answer 2

I think your code works now:

https://code.sololearn.com/cqX4i6l2whu9/?ref=app

Answer 3

Thank you, I was having trouble with that for quite a while.

Answer 4

It's supposed to return the average place of a word in the alphabet.