$4.$ Define a class to represent a bank account. Include the following members:

Data members:

$1)$ Name of the depositor

$2)$ Account number

$3)$ Type of account

$4)$ Balance amount in the account.

Member functions:

$1)$ To assign initial values

$2)$ To deposit an amount

$3)$ To withdraw an amount after checking the balance

$4)$ To display name and balance.

Write a main program to test the program.