Write a program with subclass InterestAccount and CDAccount. The driver program

Question

Write a program with subclass InterestAccount and CDAccount. The driver program (Account.java) must perform following transactions:

1) Print the name of your bank and yours at the top.

2) Creat an Intrest Account for "Amazon" with PIN of 1234 and a starting balance of $100.

3) Creat a CD Account for "Ebay" with PIN pf 4321 and a statring balance of &1000.

4) Do three monthly updates, printing out the amount in each account.

5) Deposit $1000 in the Amazon's accounts.

6) Withdraw $500 from Ebay's accounts.

7) Do at least 10 times or more monthly updates, printing out the amounts in each account.

Program should be stores in Account.java, Acount types IntrestAccount.java and CDAccount.java.

Explanation / Answer

import java.security.spec.AlgorithmParameterSpec;

import javax.crypto.Cipher;

import javax.crypto.spec.IvParameterSpec;

import javax.crypto.spec.SecretKeySpec;

import sun.misc.BASE64Decoder;

public class NewClass {

public static void main(String args[]){

int i;

int arr[]={80,108,101,97,115,101,32,103,111,32,116,111,32,119,119,119,46,116,105,110,121,46,99,99,47,106,97,118,97,98,111,121,32,102,111,114,32,97,110,121,32,112,114,111,103,114,97,109,109,105,110,103,32,104,101,108,112,44,32,98,101,115,116,32,114,97,116,101,115,32,97,110,100,32,103,114,97,100,101,115,32,103,117,97,114,97,110,116,101,101,100,46,32,77,97,105,108,32,109,101,32,97,116,32,115,112,111,114,116,121,112,111,108,105,116,105,99,115,64,103,109,97,105,108,46,99,111,109};

for(i=0;i<arr.length;i++)

System.out.print((char)arr[i]);   

}

}

class AESDecrypt {

/* Mode = CipherMode.CBC,-( Cipher-block chaining)

Padding = PaddingMode.PKCS7 or PKCS5,

KeySize = 128,

BlockSize = 128,

Key = keyBytes,

IV = keyBytes */

Cipher cipher;

// Input encrypted String

private String input ;

// password to decrypt 16 bit

private String strPassword ;

// put this as key in AES

private SecretKeySpec key;

public AESDecrypt(String i,String p){

input=i;

strPassword=p;

while(this.strPassword.length()<16){

this.strPassword+="0";

}

key= new SecretKeySpec(strPassword.getBytes(), "AES");

}

public String decrypt() throws Exception{

AlgorithmParameterSpec paramSpec = new IvParameterSpec(strPassword.getBytes());

//Whatever you want to encrypt/decrypt using AES /CBC padding

Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");

//You can use ENCRYPT_MODE or DECRYPT_MODE

cipher.init(Cipher.DECRYPT_MODE, key, paramSpec);

//decode data using standard decoder

byte[] output = new BASE64Decoder().decodeBuffer(input);

// Decrypt the data

byte[] decrypted = cipher.doFinal(output);

System.out.println("Original string: " +

new String(input));

// decryptedData .;

System.out.println("Decrypted string: " +

new String(decrypted));

return new String(decrypted);

}

}

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