use java thank you

Problem 1: Contacts ArrayList.

Part a) Write a class named Contact that has two private fields: name and phone number. The class should have a constructor and, for each field, accessor and mutator methods.

Part b) Write a demo/ test program that creates Contact objects for your best friends and stores them in your contacts list (name it myContacts) This list should be implemented as an ArrayList object from the ArrayList Class.

Display the contents (name and phone number) of each element in the ArrayList object.

Delete the first and the last contact from your contact list and display the remaining contacts.

Note: Each element of the contact list is an object itself. The fields of this object need to be accessed with appropriate methods.

Problem 2: Charge Account Validation

Create a class with a method that accepts a charge account number as its argument. The method should determine whether the number is valid by comparing it to the following list of valid charge account numbers:

5658845 8080152 1005231

4520125 4562555 6545231

7895122 5552012 3852085

8777541 5050552 7576651

8451277 7825877 7881200

1302850 1250255 4581002

These numbers should be stored in an array or an ArrayList object. Search the array to locate the number passed as an argument. If the number is in the array, the method should return true, indicating the number is valid. If the number is not in the array, the method should return false, indicating the number is invalid.

Write a program that tests the class by asking the user to enter a charge account number. The program should display a message indicating whether the number is valid or invalid.