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A Blowfish example

import java.io.FileInputStream; import java.io.FileOutputStream; import java.security.Key; import javax.crypto.Cipher; import javax.crypto.CipherOutputStream; import javax.crypto.KeyGenerator; import sun.misc.BASE64Encoder; public final class MainClass {   public static void main(String[] args) throws Exception {     KeyGenerator keyGenerator = KeyGenerator.getInstance("Blowfish");     keyGenerator.init(128);     Key secretKey = keyGenerator.generateKey();     Cipher cipherOut = Cipher.getInstance("Blowfish/CFB/NoPadding");     cipherOut.init(Cipher.ENCRYPT_MODE, secretKey);     BASE64Encoder encoder = new BASE64Encoder();     byte iv[] = cipherOut.getIV();     if (iv != null) {       System.out.println("Initialization Vector of the Cipher:\n" + encoder.encode(iv));     }     FileInputStream fin = new FileInputStream("inputFile.txt");     FileOutputStream fout = new FileOutputStream("outputFile.txt");     CipherOutputStream cout = new CipherOutputStream(fout, cipherOut);     int input = 0;     while ((input = fin.read()) != -1) {       cout.write(input);     }     fin.close();     cout.close();   } }