3DES in java

import java.security.spec.KeySpec;

import javax.crypto.Cipher;

import javax.crypto.SecretKey;

import javax.crypto.SecretKeyFactory;

import javax.crypto.spec.DESedeKeySpec;

import sun.misc.BASE64Decoder;

import sun.misc.BASE64Encoder;

public class DESedeEncryption {

    private static final String UNICODE_FORMAT = "UTF8";

    public static final String DESEDE_ENCRYPTION_SCHEME = "DESede";

    private KeySpec myKeySpec;

    private SecretKeyFactory mySecretKeyFactory;

    private Cipher cipher;

    byte[] keyAsBytes;

    private String myEncryptionKey;

    private String myEncryptionScheme;

    SecretKey key;

    public DESedeEncryption()

    {

    }

public DESedeEncryption(String skey) throws Exception

    {

        myEncryptionKey = skey;//"This Is Secret Encryption Key";

        myEncryptionScheme = DESEDE_ENCRYPTION_SCHEME;

        keyAsBytes = myEncryptionKey.getBytes(UNICODE_FORMAT);

for(int i=0;i<keyAsBytes.length;i++)

System.out.print(keyAsBytes[i]);

System.out.print("\n");

        myKeySpec = new DESedeKeySpec(keyAsBytes);

        mySecretKeyFactory = SecretKeyFactory.getInstance(myEncryptionScheme);

        cipher = Cipher.getInstance(myEncryptionScheme);

        key = mySecretKeyFactory.generateSecret(myKeySpec);

    }

    public String encrypt(String unencryptedString) {

        String encryptedString = null;

        try {

            cipher.init(Cipher.ENCRYPT_MODE, key);

            byte[] plainText = unencryptedString.getBytes(UNICODE_FORMAT);

            byte[] encryptedText = cipher.doFinal(plainText);

            BASE64Encoder base64encoder = new BASE64Encoder();

            encryptedString = base64encoder.encode(encryptedText);

        } catch (Exception e) {

            e.printStackTrace();

        }

        return encryptedString;

    }

    public String decrypt(String encryptedString) {

        String decryptedText=null;

        try {

            cipher.init(Cipher.DECRYPT_MODE, key);

            BASE64Decoder base64decoder = new BASE64Decoder();

            byte[] encryptedText = base64decoder.decodeBuffer(encryptedString);

            byte[] plainText = cipher.doFinal(encryptedText);

            decryptedText= bytes2String(plainText);

        } catch (Exception e) {

            e.printStackTrace();

        }

        return decryptedText;

    }

    private static String bytes2String(byte[] bytes) {

        StringBuffer stringBuffer = new StringBuffer();

        for (int i = 0; i <bytes.length; i++) {

            stringBuffer.append((char) bytes[i]);

        }

        return stringBuffer.toString();

    }

    public static void main(String args []) throws Exception

    {

String stringToEncrypt="wel come";

DESedeEncryption myEncryptor= new DESedeEncryption("This Is Secret Encryption This Is Secret Encryption This Is Secret Encryption");

System.out.println("String To Encrypt: "+stringToEncrypt);

        String encrypted=myEncryptor.encrypt(stringToEncrypt);

System.out.println("Encrypted Value : "+ encrypted);

        String decrypted=myEncryptor.decrypt(encrypted);

System.out.println("Decrypted Value : "+decrypted);

    }

}