Help using a method

Question

this is a part of my assignment, and im having trouble figuring out how to write this method. any help would be appreciated
"Suppose the bank wants to keep track of how many accounts exist.
a. Declare a private static integer variable numAccounts to hold this value. Like all instance and static variables, it will
be initialized (to 0, since it?s an int) automatically.
b. Add code to the constructor to increase this variable every time an account is created.
c. Add a static method getNumAccounts that returns the total number of accounts. Think about why this method
should be static ? its information is not related to any particular account."
// Account.java
// A bank account class with methods to deposit to, withdraw from,
// change the name on, and get a String representation
// of the account.
public class Account
     private double balance;
     private String name;
     private long acctNum;
     private int numAccounts; <------ i added this, is that right?
//Constructor -- initializes balance, owner, and account number
     public Account(double initBal, String owner, long number)
          balance = initBal;
          name = owner;
          acctNum = number;
// Checks the number of accounts
     public static numAccts(int number) <------- Added this method, pretty sure this isnt the way im supposed to do this
          number = numAccounts;
//Returns number of accounts
     public static getNumAccounts() <------------Added this
          return numAccts;
// Checks to see if balance is sufficient for withdrawal.
// If so, decrements balance by amount; if not, prints message.
     public void withdraw(double amount)
          if (balance >= amount)
          balance -= amount;
          else
          System.out.println("Insufficient funds");
// Adds deposit amount to balance.
     public void deposit(double amount)
          balance += amount;
// Returns balance.
     public double getBalance()
          return balance;
// Returns a string containing the name, account number, and balance.
     public String toString()
          return ?Name:? + name +
          ?\nAccount Number: ? + acctNum +
          ?\nBalance: ? + balance;
}

Answer 1

but now i have another problem. i am getting an error
Account.java:93: invalid method declaration; return type required
     public static AccountConsolidate(Account acct1, Account acct2)
                      ^
1 error this is the assignment for this method:
Add a static method Account consolidate(Account acct1, Account acct2) to your Account class that creates a new
account whose balance is the sum of the balances in acct1 and acct2 and closes acct1 and acct2. The new account should
be returned. Two important rules of consolidation:
? Only accounts with the same name can be consolidated. The new account gets the name on the old accounts but a
new account number (a random number).
? Two accounts with the same number cannot be consolidated. Otherwise this would be an easy way to double your
money!
// Account.java
// A bank account class with methods to deposit to, withdraw from,
// change the name on, and get a String representation
// of the account.
public class Account
     private double balance;
     private String name;
     private long acctNum;
     private static int numAccounts;
     private double newAccount;
//Constructor -- initializes balance, owner, and account number
     public Account(double initBal, String owner, long number)
          balance = initBal;
          name = owner;
          acctNum = number;
          numAccounts++;
// Checks to see if balance is sufficient for withdrawal.
// If so, decrements balance by amount; if not, prints message.
     public void withdraw(double amount)
          if (balance >= amount)
          balance -= amount;
          else
          System.out.println("Insufficient funds");
// Adds deposit amount to balance.
     public void deposit(double amount)
          balance += amount;
// Returns balance.
     public double getBalance()
          return balance;
//Returns number of accounts created
     public static int getNumAccounts()
          return numAccounts;
// Returns name on the account
     public String getName()
          return name;
// Returns account number
     public long getAcctNum()
          return acctNum;
// Close the current account.
     public void close()
          if (balance == 0)
          numAccounts--;
          System.out.println("CLOSED");
// Consolidates two accounts into one account.
     public static AccountConsolidate(Account acct1, Account acct2)
          newAccount = acct1.getBalance() + acct2.getBalance();
          String name1 = acct1.getName();
          String name2 = acct2.getName();
          if(name1.equals(name2));
          newAccount = newAccount.getAcctNum();
          close acct2;
          return newAccount;
// Returns a string containing the name, account number, and balance.
     public String toString()
          return "Name:" + name +
          "\nAccount Number: " + acctNum +
          "\nBalance: " + balance;
// TestAccounts1
// A simple program to test the numAccts method of the
// Account class.
import java.util.Scanner;
     public class TestAccounts1
          public static void main(String[] args)
     Account testAcct;
     Scanner scan = new Scanner(System.in);
     System.out.println("How many accounts would you like to create?");
     int num = scan.nextInt();
          for (int i=1; i<=num; i++)
          testAcct = new Account(100, "Name", i);
          System.out.println("\nCreated account " + testAcct);
          System.out.println("Now there are " + Account.getNumAccounts() +
          " accounts");
// TestAccounts2
// A simple program to test the methods of the
// Account class.
import java.util.Scanner;
     public class TestAccounts2
     public static void main(String[] args)
     Account acct1;
     Account acct2;
     Account acct3;
     Scanner scan = new Scanner(System.in);
     int num;
     System.out.println("Enter the name for account 1: ");
     int name1 = scan.nextInt();
     System.out.println("Enter the name for account 2: ");
     int name2 = scan.nextInt();
     System.out.println("Enter the name for account 3: ");
     int name3 = scan.nextInt();
     for (int i=1; i>=num; i++)
     acct1 = new Account(100, "name1", i);
     System.out.println("\nCreated account " + name1);
     System.out.println("Balance Available " + acct1.getBalance() + " account number: " + acct1.getAcctNum());
}