// Doller to Rupee program by WHITMAN KUMARESH for my sister DHANA

// Two progs are there execute write program first and then the read prog

// Any Queries -> [email protected]
FIRST PROG - WRITE PROGRAM


import java.io.*;
import java.util.*;

class Currency implements Serializable {

protected String currency;
protected int amount;

public Currency(String cur, int amt) {
this.currency = cur;
this.amount = amt;
}

public String toString() {
return currency + amount;
}

public String dollarToRupee(int amt) {
return "Rs." + amt * 45;

}
}

class Rupee extends Currency {

public Rupee(int amt) {
super("Rs.", amt);
}
}

class Dollar extends Currency {

public Dollar(int amt) {
super("$.", amt);

}
}

public class WriteWhit {

public static void main(String args[]) {
{
Random r = new Random();
try {
Currency currency;
FileOutputStream fos = new FileOutputStream("whit.txt");
ObjectOutputStream oos = new ObjectOutputStream(fos);
System.out.println("Object Serialization - writting to whit.txt");
for (int i = 1; i < 25; i++) {
Object[] obj = {new Rupee(r.nextInt(5000)), new Dollar(r.nextInt(5000))};
currency = (Currency) obj[r.nextInt(2)];
System.out.println(currency);
oos.writeObject(currency);
oos.flush();
}
oos.close();
} catch (Exception e) {
System.out.println("Error..." + e);
}
}
}
}

SECOND PROG - READ PROGRAM


import java.io.*;
import java.util.*;

public class ReadDhana {

public static void main(String args[]) {

try {
Currency obj;

FileInputStream dha = new FileInputStream("whit.txt");
ObjectInputStream tam = new ObjectInputStream(dha);
obj = (Currency) tam.readObject();
System.out.println(obj + "="+ obj.dollarToRupee(obj.amount));
for (int i = 1; i <= 25; i++) {
obj = (Currency) tam.readObject();
if ((obj.currency).equals("$.")) {
System.out.println(obj + "="+ obj.dollarToRupee(obj.amount));
} else {
System.out.println(obj + "=" + obj);
}
}
tam.close();
} catch (Exception e) {
System.out.println("Program sucessfully executed!!");
}
}
}


Enjoy..!!