need help with these java questions

.1)Customer [ ] clients;

How many objects were created when executing the above line of code?

2) clients = new Customer[25];

How many objects were created when executing the above line of code?

3) What is the result of executing the following line of code:

System.out.println(clients[[3].getBalance()); // the Customer class has a getBalance() method

4) Write the code to create the 25 Customer objects using the default constructor and assign each slot in the array the address of a Customer object,

5) Write the code to print the balance of the 5th Customer.