Create a class called BankAccount1 that implements this API.
It should be in a file called BankAccount1.java. 

You should use the javadoc command to produce your own api.  It should look exactly like the one provided.
For the "Precondition: " tag, use @pre. (with a period) and then use
javadoc .... -tag pre.:a:"Precondition: " ...



When you have finished creating the file BankAccount1.java and making sure that its API is what you want, submit it with the following command on prism

submit 1030 Exercise1 BankAccount1.java