White java program.

import java.text.*;

class Coin

{

int year;

double value;

String denom;

Coin(int year, double value, String denom)

{

this.year = year;

this.value = value;

this.denom = denom;

}

int getYear()

{

return year;

}

double getValue()

{

return value;

}

String getDenom()

{

return denom;

}

public String toString()

{

NumberFormat fmt = NumberFormat.getCurrencyInstance();

return denom + " " + year + " worth " + fmt.format(value);

}

}

collection; String filename; CoinCollection(String filena">

import java.util.*;

class CoinCollection

{

ArrayList collection;

String filename;

CoinCollection(String filename)

{

}

void add(int year, double value, String denom)

{

}

public String toString()

{

return "";

}

}

import java.util.*;

class CoinCollectionMain

{

public static void main(String[] args)

{

Scanner scan = new Scanner(System.in);

String filename = "myCoins.txt";

CoinCollection collection = new CoinCollection(filename);

int option;

do

{

System.out.println("Menu ----");

System.out.println("1-Print collection");

System.out.println("2-Add coin");

System.out.println("3-Load from text file");

System.out.println("4-Save to text file");

System.out.println("5-Load from binary file");

System.out.println("6-Save to binary file");

System.out.println("0-Exit");

System.out.print("Your option: ");

option = scan.nextInt();

scan.nextLine();

if (option==1)

;// add here one line of code to print the collection

else if (option==2)

{

System.out.print("Year: ");

int year = scan.nextInt();

System.out.print("Value: ");

double value = scan.nextDouble();

scan.nextLine();

System.out.print("Denomination: ");

String denom = scan.nextLine();

;// add here the code to add this coin to the collection

}

else if (option==3)

;// add here one line to call a method for loading from text file

else if (option==4)

;// add here one line to call a method for saving to text file

else if (option==5)

{

;// add here the lines of code to call a method for loading

// from binary file, and handle the exception if a problem arises

}

else if (option==6)

;// add here one line to call a method for saving to binary file

} while (option != 0);

}

}