Exercise:1) Design a class ComboLock that works like the combination lock in a gym locker, as shown below. Thelock is constructed with a combination-three numbers between 0 and 39. The reset method resets the dialso that it points to 0. The turnLeft and turnRight methods turn the dial by a given number of ticks tothe left or right. The getStatus method returns a Boolean indicating whether the lock is opened(true) orclosed(false). The lock opens if the user first turned it right to the first number in the combination, then left tothe second, and then right to the third.02362) Document your class.3) Provide a tester class and test a scenario in which you create a comboLock having the code (25, 36, 19), unlockit successfully, and print the status of the lock after each turn.4) Put the ComboLock class and the tester class in two distinct packages

We need to write a Java code for the given scenario. ***Only 1st 3 questions are answered. For…

Answered: Exercise: 1) Design a class ComboLock…

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

Problem 1PE

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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

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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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