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For this program, you will create a class modeled on a real-world combination lock. A combination lock (like the one shown) allows a person to turn the dial counter-clockwise to select the first number, then turn the dial clockwise to select the second number, and final turn the dial counter-clockwise to select the third number. If the numbers were selected in the correct order and match the lock's combination, then the lock will open. The lock you will model will have the numbers 0 through 39 with a three-number combination.

For this program, you will create a class modeled on a real-world combination lock. A combination lock (like the one shown) allows a person to turn the dial counter-clockwise to select the first number, then turn the dial clockwise to select the second number, and final turn the dial counter-clockwise to select the third number. If the numbers were selected in the correct order and match the lock's combination, then the lock will open. The lock you will model will have the numbers 0 through 39 with a three-number combination.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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For this program, you will create a class modeled on a real-world combination lock. A combination lock (like the one shown) allows a person to turn the dial counter-clockwise to select the first number, then turn the dial clockwise to select the second number, and finally turn the dial counter-clockwise to select the third number. If the numbers were selected in the correct order and match the lock's 20 combination, then the lock will open. The lock you will model will have the numbers 0 through 39 with a three-number combination. The class must be named Combolock (in a file named Combolock.java) and must contain the following in its design: 1. A public constructor that accepts three int arguments as its combination. • Ifa number less than 0 is supplied for any argument, default that number to 0. • Ifa number greater than 39 is supplied for any argument, default that number to 39. 2. A public void method named reset that accepts no arguments. • This method should set the dial's current position back to zero and “forget" the numbers that were previously selected by the dial. 3. A public void method named turnClockwise that accepts one int argument. • The int argument is how many numbers the dial is turned clockwise (forward). • Be sure to not let the dial exceed 39. If the dial is turned past 0, it continues from 39. 4. A public void method named turnCounterClockwise that accepts one int argument. • The int argument is how many numbers the dial is turned counterclockwise (backwards). • Be sure to not let the dial go below 0. If the dial is turned past 39, it continues from 0. 5. A public method named open that accepts no arguments. This method returns a boolean: true if the correct combination was entered, false if the incorrect combination was entered. You may include any private methods and private fields as you deem necessary, but do not include any additional public members. The class will need to keep track of the lock's correct combination, the combination that was entered by calling the turnClockwise and turnCounterClockwise methods, and what number the dial is currently set to.
Transcribed Image Text:For this program, you will create a class modeled on a real-world combination lock. A combination lock (like the one shown) allows a person to turn the dial counter-clockwise to select the first number, then turn the dial clockwise to select the second number, and finally turn the dial counter-clockwise to select the third number. If the numbers were selected in the correct order and match the lock's 20 combination, then the lock will open. The lock you will model will have the numbers 0 through 39 with a three-number combination. The class must be named Combolock (in a file named Combolock.java) and must contain the following in its design: 1. A public constructor that accepts three int arguments as its combination. • Ifa number less than 0 is supplied for any argument, default that number to 0. • Ifa number greater than 39 is supplied for any argument, default that number to 39. 2. A public void method named reset that accepts no arguments. • This method should set the dial's current position back to zero and “forget" the numbers that were previously selected by the dial. 3. A public void method named turnClockwise that accepts one int argument. • The int argument is how many numbers the dial is turned clockwise (forward). • Be sure to not let the dial exceed 39. If the dial is turned past 0, it continues from 39. 4. A public void method named turnCounterClockwise that accepts one int argument. • The int argument is how many numbers the dial is turned counterclockwise (backwards). • Be sure to not let the dial go below 0. If the dial is turned past 39, it continues from 0. 5. A public method named open that accepts no arguments. This method returns a boolean: true if the correct combination was entered, false if the incorrect combination was entered. You may include any private methods and private fields as you deem necessary, but do not include any additional public members. The class will need to keep track of the lock's correct combination, the combination that was entered by calling the turnClockwise and turnCounterClockwise methods, and what number the dial is currently set to.
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