Thread: initialization vector question

I create program for Encryption and Decryption. I like know if its safe initialization vector make public?
I Create IV with next coomand

FileOutputStream ivOutFile = new FileOutputStream("iv.enc");
byte[] iv = params.getParameterSpec(IvParameterSpec.class).getIV();
ivOutFile.write(iv);
ivOutFile.close();

I get IV with text:
##áu;1cĚ�…»„AT€

now I like read file iv.enc. For this I use

File file = new File("iv.enc"); 
  BufferedReader br = new BufferedReader(new FileReader(file)); 
  String st; 
  while ((st = br.readLine()) != null) 
    System.out.println(st); 
  String data = readFileAsString("iv.enc"); 
    System.out.println(data);

but I get text:
�u;1��AT�

How I can read IV that I get oruginak text?

My all code its:
this its funcion in java clas rezultati

public void skrij(String[] args) throws Exception{
    	// file to be encrypted
		FileInputStream inFile = new FileInputStream("plainfile.txt");
 
		// encrypted file
		FileOutputStream outFile = new FileOutputStream("encryptedfile.des");
        	// password to encrypt the file
		String password = "januar";
                String ime= "opica";
                byte[] salt = ime.getBytes();
 
 
		SecretKeyFactory factory = SecretKeyFactory
				.getInstance("PBKDF2WithHmacSHA1");
		KeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt, 65536,
				256);
		SecretKey secretKey = factory.generateSecret(keySpec);
		SecretKey secret = new SecretKeySpec(secretKey.getEncoded(), "AES");
		Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
		cipher.init(Cipher.ENCRYPT_MODE, secret);
		AlgorithmParameters params = cipher.getParameters();
                // create and save IV
                FileOutputStream ivOutFile = new FileOutputStream("iv.enc");
		byte[] iv = params.getParameterSpec(IvParameterSpec.class).getIV();
		ivOutFile.write(iv);
		ivOutFile.close();
		byte[] input = new byte[64];
		int bytesRead;
        	while ((bytesRead = inFile.read(input)) != -1) {
			byte[] output = cipher.update(input, 0, bytesRead);
			if (output != null)
				outFile.write(output);
		}
 
		byte[] output = cipher.doFinal();
		if (output != null)
			outFile.write(output);
		inFile.close();
		outFile.flush();
		outFile.close();
		System.out.println("File Encrypted.");
 
 }

and this code call objekt and write iv.enc

public static void main(String[] args) throws Exception {
  rezultati objekt = new rezultati();
  objekt.skrij(args);
        String fileName = "iv.enc";
 
        try {
            byte[] buffer = new byte[1000];
            FileInputStream inputStream = 
                new FileInputStream(fileName);
            int total = 0;
            int nRead = 0;
            while((nRead = inputStream.read(buffer)) != -1) {
                System.out.println(new String(buffer));
                total += nRead;
            }   
            inputStream.close();        
 
            System.out.println("Read " + total + " bytes");
        }
        catch(FileNotFoundException ex) {
            System.out.println(
                "Unable to open file '" + 
                fileName + "'");                
        }
        catch(IOException ex) {
            System.out.println(
                "Error reading file '" 
                + fileName + "'");                  
 
        }
    }

this its all code:
this its funcion in java clas rezultati

 
package preprosti;
 
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.security.AlgorithmParameters;
import java.security.spec.KeySpec;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec;
 
 
/**
 *
 * @author Igor
  */
public class rezultati {
public void skrij(String[] args) throws Exception{
    	// file to be encrypted
		FileInputStream inFile = new FileInputStream("plainfile.txt");
 
		// encrypted file
		FileOutputStream outFile = new FileOutputStream("encryptedfile.des");
        	// password to encrypt the file
		String password = "januar";
                String ime= "opica";
                byte[] salt = ime.getBytes();
 
 
		SecretKeyFactory factory = SecretKeyFactory
				.getInstance("PBKDF2WithHmacSHA1");
		KeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt, 65536,
				256);
		SecretKey secretKey = factory.generateSecret(keySpec);
		SecretKey secret = new SecretKeySpec(secretKey.getEncoded(), "AES");
		Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
		cipher.init(Cipher.ENCRYPT_MODE, secret);
		AlgorithmParameters params = cipher.getParameters();
                // create and save IV
                FileOutputStream ivOutFile = new FileOutputStream("iv.enc");
		byte[] iv = params.getParameterSpec(IvParameterSpec.class).getIV();
		ivOutFile.write(iv);
		ivOutFile.close();
		byte[] input = new byte[64];
		int bytesRead;
        	while ((bytesRead = inFile.read(input)) != -1) {
			byte[] output = cipher.update(input, 0, bytesRead);
			if (output != null)
				outFile.write(output);
		}
 
		byte[] output = cipher.doFinal();
		if (output != null)
			outFile.write(output);
		inFile.close();
		outFile.flush();
		outFile.close();
		System.out.println("File Encrypted.");
 
 }
}

and this code call objekt and write iv.enc

public static void main(String[] args) throws Exception {
  rezultati objekt = new rezultati();
  objekt.skrij(args);
        String fileName = "iv.enc";
 
        try {
            byte[] buffer = new byte[1000];
            FileInputStream inputStream = 
                new FileInputStream(fileName);
            int total = 0;
            int nRead = 0;
            while((nRead = inputStream.read(buffer)) != -1) {
                System.out.println(new String(buffer));
                total += nRead;
            }   
            inputStream.close();        
 
            System.out.println("Read " + total + " bytes");
        }
        catch(FileNotFoundException ex) {
            System.out.println(
                "Unable to open file '" + 
                fileName + "'");                
        }
        catch(IOException ex) {
            System.out.println(
                "Error reading file '" 
                + fileName + "'");                  
 
        }
    }

and how i can text from vi.enc "%A›Žóéu›ëGžžIç? " send to string ?
decryption code work normall

my full change code for Encryption/Decryption its
First create file named plainfile.txt with text: This its test file with some text.This its original.
Main project. Here call function skrij and odkrijjava class zatest

public static void main(String[] args) throws Exception {
    zatest objekt = new zatest();
    objekt.skrij(args);// Encrypted file
    objekt.odkrij(args);// Decrypted file
    }

function for encrypted file in java class zatest

public void skrij(String[] args) throws Exception{  
        byte[] iv = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
        IvParameterSpec ivspec = new IvParameterSpec(iv);
        FileInputStream inFile = new FileInputStream("plainfile.txt");
 
		// encrypted file
		FileOutputStream outFile = new FileOutputStream("encryptedfile.des");
        	// password to encrypt the file
		String password = "januar";
                String ime= "opica";
                byte[] salt = ime.getBytes();
                SecretKeyFactory factory = SecretKeyFactory
				.getInstance("PBKDF2WithHmacSHA1");
		KeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt, 65536,
				256);
		SecretKey secretKey = factory.generateSecret(keySpec);
		SecretKey secret = new SecretKeySpec(secretKey.getEncoded(), "AES");
		Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
		cipher.init(Cipher.ENCRYPT_MODE, secret);
		AlgorithmParameters params = cipher.getParameters();
                byte[] input = new byte[64];
		int bytesRead;
        	while ((bytesRead = inFile.read(input)) != -1) {
			byte[] output = cipher.update(input, 0, bytesRead);
			if (output != null)
				outFile.write(output);
		}
 
		byte[] output = cipher.doFinal();
		if (output != null)
			outFile.write(output);
		inFile.close();
		outFile.flush();
		outFile.close();
}

function for decryption file in java class zatest

public void odkrij(String[] args) throws Exception{  
            String password = "januar";
		String ime= "opica";
                byte[] salt = ime.getBytes();
        byte[] iv = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
        IvParameterSpec ivspec = new IvParameterSpec(iv);
 
                SecretKeyFactory factory = SecretKeyFactory
				.getInstance("PBKDF2WithHmacSHA1");
		KeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt, 65536,
				256);
		SecretKey tmp = factory.generateSecret(keySpec);
		SecretKey secret = new SecretKeySpec(tmp.getEncoded(), "AES");
 
		// file decryption
		Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
		cipher.init(Cipher.DECRYPT_MODE, secret, new IvParameterSpec(iv));
		FileInputStream fis = new FileInputStream("encryptedfile.des");
		FileOutputStream fos = new FileOutputStream("plainfile_decrypted.txt");
		byte[] in = new byte[64];
		int read;
		while ((read = fis.read(in)) != -1) {
			byte[] output = cipher.update(in, 0, read);
			if (output != null)
				fos.write(output);
		}
 
		byte[] output = cipher.doFinal();
		if (output != null)
			fos.write(output);
		fis.close();
		fos.flush();
		fos.close();
        }

file named plainfile.txt with original text:
This its test file with some text.This its original.
I get Encrypted file named encryptedfile.des with text:
‹öpÝMĘ®Ń#Ŕży!#Ďd¬×r#„k0ź‰~çFm•€##ÝőLxRN#jŽ ą`÷äç˛4 9ƒł…Žă7űčť#a
my decrypted file named plainfile_decrypted.txt has text:
€WxEˆÉD˛TęĎű`Sq.le with some text.This its original.
Why dont see original text in Decrypted file?

Import section in java class zatest

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.security.AlgorithmParameters;
import java.security.spec.KeySpec;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec;

im find kode

cipher.init(Cipher.ENCRYPT_MODE, secret);

in function skrij and code

   cipher.init(Cipher.DECRYPT_MODE, secret, new IvParameterSpec(iv));

in function odkrij

How I can use IV?
How I fix error?