must be written in java and work with the following classes. thank you.

This is BankAccount test class

Public class BankTester {

//your code here

}

This is the BankAccount Class

Should not be changed

Public class BankAccount {

private double balance;

private String name;

private int acctNumber;

public BankAccount (String initName , int acct )

{

name=initName;

acctNumber=acct;

balance=0.0;

}

public void deposit(double amt)

{

balance=balance+amt;

}

public void withdraw(double amt)

{

balance=balance-amt;

}

public double getBalance()

{

return balance;

}

}

Write a BankAccountTester class whose main method constructs a bank account, deposits $1,000, withdraws $500, withdraws another $400, and then prints the remaining balance. Also print the expected result