LockADT – Show the interface and all abstract methods LockDataStructureClass – Show the following methods: default constructor, overloaded constructor, copy constructor, setX, setY, setZ, alter (change the lock’s combination to the numbers passed) turn (use for loops to show the dial turning), close (locks the lock), attempt (tries to unlock the lock – calls turn( ), inquire (locked or unlocked), current (returns the number the dial is pointing to), toString LockClientDemoClass – You should have a Lock object instantiated and a menu method that displays: 1: set lock combination  2: close lock   3: check status  4: attempt to open lock 5: check what the dial is currently pointing at 6: exit the program   Example of turning the lock: First number (17):  0 39 38 37 … 0 39 38 …17 Second number (26): 17 18 19 ... 38 39 0 1 2 … 17 18 19 20 21 22 23 24 25 26 Third number (9): 26 25 24 23 …. 12 11 10 9 (go directly to the number)   Demonstrate all behaviors (actions, methods) of the lock.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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LockADT – Show the interface and all abstract methods

LockDataStructureClass – Show the following methods: default constructor, overloaded constructor, copy constructor, setX, setY, setZ, alter (change the lock’s combination to the numbers passed) turn (use for loops to show the dial turning), close (locks the lock), attempt (tries to unlock the lock – calls turn( ), inquire (locked or unlocked), current (returns the number the dial is pointing to), toString

LockClientDemoClass – You should have a Lock object instantiated and a menu method that displays:

1: set lock combination 

2: close lock  

3: check status 

4: attempt to open lock

5: check what the dial is currently pointing at

6: exit the program

 

Example of turning the lock:

First number (17):  0 39 38 37 … 0 39 38 …17

Second number (26): 17 18 19 ... 38 39 0 1 2 … 17 18 19 20 21 22 23 24 25 26

Third number (9): 26 25 24 23 …. 12 11 10 9 (go directly to the number)

 

Demonstrate all behaviors (actions, methods) of the lock.

 

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