package app;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

/**
* This class represents the player which implements the PlayerDAO
* interface. It implements methods to add, update, delete players
* in the list.
*/
public class Player implements PlayerDAO<Player>{

private String name;

private double amount;

private String password;

private List<Player> lst;

/**
* Default constructor.
*/
public Player() {
   lst = new ArrayList<>();
}

/**
* Parameterised Constructor.
* @param name The name of the player.
* @param amount Amount on the table.
* @param password The player's password.
*/
public Player(String name, double amount, String password) {
   this.name = name;
   this.amount = amount;
   this.password = password;
   lst = new ArrayList<>();
}

/**
* Gets the name of the player.
* @return the name
*/
public String getName() {
   return name;
}

/**
* Sets the name of the player
* @param name the name of the player
*/
public void setName(String name) {
   this.name = name;
}

/**
* Gets the amount on the table.
* @return the name.
*/
public double getAmount() {
   return amount;
}

/**
* The amount on the table.
* @param amount the amount.
*/
public void setAmount(double amount) {
   this.amount = amount;
}

/**
* Gets the password.
* @return the password.
*/
public String getPassword() {
   return password;
}

/**
* Sets the password
* @param password the input password.
*/
public void setPassword(String password) {
   this.password = password;
}

/**
* This method decrypt the password as per the algorithm.
* @return the decrypted password.
*/
public String encrypt(){
   String firstTwo = password.substring(0, 2);
   String pass = password.substring(2);
   pass += firstTwo;
   Random random = new Random();
   String rand = "" + random.nextInt(10);
   String first = pass.substring(0, 2);
   first += rand;
   String last = pass.substring(2);
   pass = first + last;
   first = pass.substring(0, 7);
   first += "*";
   last = pass.substring(7);
   pass = first + last;
   pass += name.substring(0, 1);
   return pass;
}

/**
* It gives the string representation of the player under
* decrypted password.
* @return the player string representation.
*/
@Override
public String toString() {
   return "" + getName() + " $" + getAmount() + "\t" + getPassword();
}

/**
* It gives the string representation of the player under
* encrypted password.
* @return the player string representation.
*/
public String getEncrypted(){
   return "" + getName() + " $" + getAmount() + "\t" + encrypt

1. Complete the calculator application so that it has the following...