Declare a method public double calculateInterest() in the class Account. Just declare this method without providing any definition/implementation.Make necessary changes to the class declaration. public class Account{       private int accountNumber;       private String holderName;       private double balance;                 // Declare the method calculateInterest              }

// BankAccount.java// Parent class BankAccountpublic class BankAccount { private String accountNumber; private double balance; public BankAccount(String accountNumber, double balance) { this.accountNumber = accountNumber; this.balance = balance; } public void deposit(double amount) { balance += amount; } public void withdraw(double amount) { if (balance >= amount) { balance -= amount; } else { System.out.println("Insufficient balance"); } } public double getBalance() { return balance; }}Copy// SavingsAccount.java// Child class SavingsAccountpublic class SavingsAccount extends BankAccount { public SavingsAccount(String accountNumber, double balance) { super(accountNumber, balance); } @Override public void withdraw(double amount) { if (getBalance() - amount < 100) { System.out.println("Minimum balance of $100 required!"); } else { super.withdraw(amount); } }}Copy // Main.java// Main classpublic class Main { public static void main(String[] args) { System.out.println("Create a Bank Account object (A/c No. BA1234) with initial balance of $500:"); //Create a BankAccount object (A/c No. "BA1234") with initial balance of $500 BankAccount BA1234 = new BankAccount("BA1234", 500); // Deposit $1000 into account BA1234 System.out.println("Deposit $1000 into account BA1234:"); BA1234.deposit(1000); System.out.println("New balance after depositing $1000: $" + BA1234.getBalance()); // Withdraw $600 from account BA1234 System.out.println("Withdraw $600 from account BA1234:"); BA1234.withdraw(600); System.out.println("New balance after withdrawing $600: $" + BA1234.getBalance()); // Create a SavingsAccount object (A/c No. "SA1234") with initial balance of $450 System.out.println("\nCreate a SavingsAccount object (A/c No. SA1234) with initial balance of $450:"); SavingsAccount SA1234 = new SavingsAccount("SA1234",450); // Withdraw $300 from SA1234 SA1234.withdraw(300); System.out.println("Balance after trying to withdraw $300: $" + SA1234.getBalance()); // Create a SavingsAccount object (A/c No. "SA1000") with initial balance of $300 System.out.println("\nCreate a SavingsAccount object (A/c No. SA1000) with initial balance of $300:"); SavingsAccount SA1000 = new SavingsAccount("SA1000",300); // Withdraw $250 from SA1000 (balance falls below $100) System.out.println("Try to withdraw $250 from SA1000!"); SA1000.withdraw(250); System.out.println("Balance after trying to withdraw $250: $" + SA1000.getBalance()); }}

public class Account{       private int accountNumber;       private String holderName;       private double balance;                    public Account(int accountNumber, String holderName, double balance) {              this.accountNumber = accountNumber;              this.holderName = holderName;              this.balance = balance;       } } public class Main{       public static void main(String args[]) {              Account accObj1=new Account(1001,"Chandru",50000);                           System.out.println(accObj1);                    }}If the above code should give the output as “Account Number : 1001, Holder : Chandru, Balance : 50000”, which method should be overridden and that method should be written in which class.Select one:a.Override toString() method in Account classb.Override tostring() method in Account classc.Override tostring() method in Main classd.Override toString() method in Main class

Fill the code to override the equals method in Object class and invoke that method for 2 account objects and compare the objects. Code : public class Account{       private int accountNumber;       private String holderName;       private double balance;                    public Account(int accountNumber, String holderName, double balance) {              this.accountNumber = accountNumber;              this.holderName = holderName;              this.balance = balance;       }       //Override the equals method in the Object class       public   equals() {       //Downcast Object o to Account acc        acc = o;        if(this.accountNumber==acc.accountNumber &&                                                                                       this.holderName.equals(acc.holderName) && this.balance==acc.balance)                                 ;         else                                 ;       }}public class Main{       public static void main(String args[]) {              Account accObj1=new Account(1001,"Chandru",50000);              Account accObj2=new Account(1001,"Chandru",50000);                          //Invoke the equals method for the above two objects.              System.out.println(.());                   }}

Observe the below code.  You have a class InsurancePolicy and another class VehicleInsurancePolicy that inherits InsurancePolicy.InsurancePolicy.javapublic class InsurancePolicy { private int policyNumber; private String holderName; private double amount; double calculateBonusAmount(){ //some logic return 0; } }VehicleInsurancePolicy.javaclass VehicleInsurancePolicy extends InsurancePolicy { private String vehicleNumber; private int noOfMonths;   double calculateBonusAmount(){ //some logic return 0; }}Which access specifier can be given to the overridden method calculateBonusAmount.

Program that creates a class Account that stores a variable balance. The class has methods to startaccount, to deposit money, to withdraw money and tell the current balance amoun