Random Letter problem please help!

I've got a database of words which are held in an arraylist. I have created a getWord method which selects a word at random. The computer needs to select a letter out of the seleted random Word. At the moment it is selecting a letter from A-Z which is not correct. I would like it to select a letter from the chosen word, similar to hangman.

Code :

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private void chooseLetter() {
        boolean guessed=true;
        Random randomGenerator = new Random();
        char letter = (char) (randomGenerator.nextInt(26)+65);
        chosen=word.hasLetter(letter);

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Took me some time, but I got it :)

Code :

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import java.io.*;
import java.util.*;
 
public class RandomLetter {		
 
public static void main(String args[]) {
 
Random generator = new Random();
int RandomNumber = 0;
int RandomNumberTwo = 0;
String words[] = new String [3];
words[0] = "TestForJavaForumsYahh";
words[1] = "BigTest";
words[2] = "Forums";
 
//Generate a random number from 0-2
RandomNumber = generator.nextInt(3);
 
//Get the length of the randomly selected string
int length = words[RandomNumber].length();
 
//Generate a random number that is from 0-length
RandomNumberTwo = generator.nextInt(length);
 
//Print out a character from the random word selected
System.out.println(words[RandomNumber].charAt(RandomNumberTwo));
 
System.out.println(words[RandomNumber]);
 
}	
}

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This randomly picks a word from your word bank. Then it randomly picks a letter from the word and prints it out.