Exercise: 1) Design a class ComboLock that works like the combination lock in a gym locker, as shown below. The lock is constructed with a combination-three numbers between 0 and 39. The reset method resets the dial so that it points to 0. The turnLeft and turnRight methods turn the dial by a given number of ticks to the left or right. The getStatus method returns a Boolean indicating whether the lock is opened(true) or closed(false). The lock opens if the user first turned it right to the first number in the combination, then left to the second, and then right to the third. 36 2) Document your class. 3) Provide a tester class and test a scenario in which you create a comboLock having the code (25, 36, 19), unlock it successfully, and print the status of the lock after each turn. 4) Put the ComboLock class and the tester class in two distinct packages

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
Section: Chapter Questions
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Exercise:
1) Design a class ComboLock that works like the combination lock in a gym locker, as shown below. The
lock is constructed with a combination-three numbers between 0 and 39. The reset method resets the dial
so that it points to 0. The turnLeft and turnRight methods turn the dial by a given number of ticks to
the left or right. The getStatus method returns a Boolean indicating whether the lock is opened(true) or
closed(false). The lock opens if the user first turned it right to the first number in the combination, then left to
the second, and then right to the third.
02
36
2) Document your class.
3) Provide a tester class and test a scenario in which you create a comboLock having the code (25, 36, 19), unlock
it successfully, and print the status of the lock after each turn.
4) Put the ComboLock class and the tester class in two distinct packages
Transcribed Image Text:Exercise: 1) Design a class ComboLock that works like the combination lock in a gym locker, as shown below. The lock is constructed with a combination-three numbers between 0 and 39. The reset method resets the dial so that it points to 0. The turnLeft and turnRight methods turn the dial by a given number of ticks to the left or right. The getStatus method returns a Boolean indicating whether the lock is opened(true) or closed(false). The lock opens if the user first turned it right to the first number in the combination, then left to the second, and then right to the third. 02 36 2) Document your class. 3) Provide a tester class and test a scenario in which you create a comboLock having the code (25, 36, 19), unlock it successfully, and print the status of the lock after each turn. 4) Put the ComboLock class and the tester class in two distinct packages
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1) Document your class.
2) Provide a tester class and test a scenario in which you create a comboLock having the code (25, 36, 19), unlock
it successfully, and print the status of the lock after each turn.
3) Put the ComboLock class and the tester class in two distinct packages

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