PLEASEEEEEEHELP MEEEEE ITS DUE TMR String index out of range: -1

[worthless]

Java:

import java.io.File; import java.io.FileNotFoundException; import java.util.Scanner; /**  * Rovarspraket  *  * @author  * @version  *  */ public class Rovarspraket {         public static void main(String[] args) throws FileNotFoundException         {                 Scanner inFile = new Scanner(new File("src/Rovarspraket.txt"));                 String line = inFile.nextLine().toLowerCase();                 String consonant =    "bcdfghjklmnpqrstvwxyz";                 String closestVowel = "aaeeeiiiiooooouuuuuuu";                 String newLine = "";                 for (int pos = 0; pos < line.length(); pos++)                 {                         char letter = line.charAt(pos);                         int consonantPos = consonant. indexOf(letter);                         char vowel=closestVowel.charAt(consonantPos);                         char nextConsonant = (char) (letter + 1);                         String letterString = Character.toString(letter);                         String vowelString = Character.toString(vowel);                         String nextConsonantString = Character.toString(nextConsonant);                         newLine = letterString + vowelString                                         + nextConsonantString;                                                 if (consonantPos==-1)                         {                                 String unchangeVowelString = Character.toString(letter);                                 newLine+=unchangeVowelString;                         }                         }                 inFile.close();         } }

AND I GOT THIS

code:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: -1         at java.lang.String.charAt(Unknown Source)         at Rovarspraket.main(Rovarspraket.java:27)

Mod Edit: Please syntax="java" or code BBcode tags to wrap your code and stuff.

[Zren]

String.indexOf() will return -1 if it can't find the string you supply it.
http://docs.oracle.com/javase/6/docs/api/java/lang/String.html#indexOf(java.lang.String)

Try debugging what character you're trying to find. Use System.out.println() to print the values of your variables.

Example:

Java:

System.out.format("pos=%s\n", pos); char letter = line.charAt(pos); System.out.format("letter=%s\n", letter); int consonantPos = consonant. indexOf(letter); System.out.format("consonantPos=%s\n", consonantPos); char vowel=closestVowel.charAt(consonantPos); System.out.format("vowel=%s\n", vowel);

I'm guessing you forgot about the newline character (\n) or the whitespace character.
http://www.asciitable.com/index/asciifull.gif