Your job is to create one class called ZombiePlant. You should pass all of the tests in the ZombiePlantTester class (provided).
This question involves the implementation of a zombie plant treatment system that is represented by the ZombiePlant class. A ZombiePlant object is created with parameters that specify the maximum potency for a successful treatment and the initial number of successful treatments required to cure the plant. The ZombiePlant class provides a constructor and the following methods.
- getPotency, which returns the degree of potency that a treatment requires in order to be successful.
- treatmentsNeeded, which returns the number of successful treatments required to cure the plant.
- isDangerous, which returns true if the plant requires treatment, false otherwise.
- treat, which administers a treatment with the specified potency.
The following table contains a sample code execution sequence and the corresponding results.
| Statements and Expressions | Value Returned (blank if no value) | Comment |
|---|---|---|
| ZombiePlant plant = new ZombiePlant(10, 3); | The plant requires treatments with a potency <= 10. The plant initially needs 3 successful treatments to be cured. | |
| plant.getPotency() | 10 | The plant requires treatments with a potency of <= 10. |
| plant.treatmentsNeeded(); | 3 | The plant has not yet been treated, so it still needs 3 treatments to be cured. |
| plant.isDangerous(); | true | The plant still needs at least 1 treatment to be cured, so it is dangerous. |
| plant.treat(7); | The treatment potency is <= 10, so the treatment is successful | |
| plant.treatmentsNeeded(); | 2 | The plant now needs 2 successful treatments to be cured. |
| plant.treat(11); | The treatment potency is not <= 10, so the treatment is not successful. | |
| plant.treatmentsNeeded(); | 3 | The failed treatment increased the number of successful treatments needed for the plant to be cured by 1. |
| plant.treat(10); | The treatment potency is <= 10, so the treatment is successful. | |
| plant.treatmentsNeeded(); | 2 | The plant now needs 2 successful treatments to be cured. |
| plant.isDangerous(); | true | The plant still needs at least 1 treatment to be cured, so it is dangerous. |
| plant.treat(8); | The treatment potency is <= 10, so the treatment is successful. | |
| plant.treat(4); | The treatment potency is <= 10, so the treatment is successful. | |
| plant.treatmentsNeeded(); | 0 | The successful treatments reduced the number of treatments needed to 0. |
| plant.isDangerous(); | false | The plant has been cured. It is no longer dangerous. |
| plant.treat(4); | Additional treatments with a potency <= 10 have no effect. | |
| plant.treatmentsNeeded(); | 0 | The additional treatment with a potency <= 10 had no effect. |
| plant.isDangerous(); | false | The plant remains cured. |
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