Generating a string of random letters, without repeating

[red jolt]

I am trying to generate a list of random letters of the English alphabet without using the same letter twice.
This code currently makes a list of random letters but there is a chance that letters are repeated... how could I avoid using the same letter twice?

                        for (int i = 0; i < 8; i++) 
                        {
                            char c = (char)(rand.nextInt(26) + 65);
                            code += c;
                        }
                        break;

[wicked wigeon]

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[fiery thicket]

you should check either that character is in string already

[red jolt]

what would be a good way do do this....

[fiery thicket]

like ```java
while (counter < 8)
char c = generate
if (word.indexOf(c) != -1)
continue;
word += c;
counter++;

[red jolt]

thanks boss

[wicked wigeon]

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