Decrypt Password File

Question

Evening. I am totally new to security. after hours of reading about keys and de-enCryption I created this experiment class, that most is copy&paste from sun. All I need is a class that in a simple way decrypt an password file.
Am I even close to the best solution? Code below has two errors, both says "cant find symbol" when mouse over in NetBeans.
public class EnDeCrypt {
   static byte[] encodedAlgParams;
    public static KeyPair myKey()throws Exception{
        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("PBE");
        keyPairGenerator.initialize(1024);
        KeyPair keyPair = keyPairGenerator.genKeyPair();
        return keyPair;
    public static void enCrypt() throws Exception{
        try {
            Cipher c = Cipher.getInstance("PBEWithMD5AndDES");
            c.init(Cipher.ENCRYPT_MODE, myKey());  // *1* <---mouse over c.init says "cant find symbol"
            byte[] cipherText = c.doFinal(text.getBytes());
            AlgorithmParameters algParams = c.getParameters();
            encodedAlgParams = algParams.getEncoded();
            } catch (NoSuchAlgorithmException ex) {
            Logger.getLogger(EnDeCrypt.class.getName()).log(Level.SEVERE, null, ex);
            } catch (NoSuchPaddingException ex) {
            Logger.getLogger(EnDeCrypt.class.getName()).log(Level.SEVERE, null, ex);
    public static void deCrypt(String text) throws Exception {
        AlgorithmParameters algParams;
        algParams =  AlgorithmParameters.getInstance("PBEWithMD5AndDES");
        algParams.init(encodedAlgParams);
        Cipher c = Cipher.getInstance("PBEWithMD5AndDES");
        c.init(Cipher.DECRYPT_MODE, myKey, algParams);// *2*<-- mouse over myKey() says, "cant find this symbol"
{code}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

Answer 1

MagnusT76 wrote:
As i mention before this is new for me. Obviously.
I used the code below. Which simply hashes a password+salt, checks the hash against what is expected and then stores it. No 'decryption' involved.
And when I open the password file it shows alot of numbers and letters.And what makes you believe that these 'numbers and letters' in any way represent the 'decrypted' password?
>
public void storePassword(String password){
String hashed = BCrypt.hashpw(password, BCrypt.gensalt());
if (BCrypt.checkpw(password, hashed)){
FileHandler.setPasswd(hashed);
} else {
        failLogin("Error saving you password");
}Stop guessing. Start reading. Expect to find that you can't 'decrypt' the hashed passwords.
Bye