Password-Generator/Alphabet.java at main · Mr-DEVINE/Password-Generator · GitHub

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public class Alphabet {

    public static final String UPPERCASE_LETTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    public static final String LOWERCASE_LETTERS = "abcdefghijklmnopqrstuvwxyz";
    public static final String NUMBERS = "1234567890";
    public static final String SYMBOLS = "!@#$%^&*()-_=+\\\\/~?";

    private final StringBuilder pool;

    public Alphabet(boolean uppercaseIncluded, boolean lowercaseIncluded, boolean numbersIncluded, boolean specialCharactersIncluded){

        pool = new StringBuilder();

        if (uppercaseIncluded) pool.append(UPPERCASE_LETTERS);

        if (lowercaseIncluded) pool.append(LOWERCASE_LETTERS);

        if (numbersIncluded) pool.append(NUMBERS);

        if (specialCharactersIncluded) pool.append(SYMBOLS);
    }

    public String getAlphabet(){
        return pool.toString();
    }
}