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------------------------------------------------ (b) Write the `longestHeatWave` method, which returns the length of the longest heat wave found in the `temperatures` instance variable. A heat wave is a sequence of two or more consecutive days with a daily high temperature greater than the parameter `threshold`. The `temperatures` instance variable is guaranteed to contain at least one heat wave based on the `threshold` parameter.

For example, consider the following contents of `temperatures`:

```
100.5
98.5
102.0
103.9
87.5
105.2
90.3
94.8
109.1
107.4
93.2
```

In the following sample contents of `temperatures`, all heat waves based on the threshold temperature of 100.5 are shaded. The method call `longestHeatWave(100.5)` would return 3, which is the length of the longest heat wave.

```
100.5
98.5
103.9
105.2
90.3
109.1
102.1
107.4
```

In the following sample contents of `temperatures`, all heat waves based on the threshold temperature of 95.2 are shaded. The method call `longestHeatWave(95.2)` would return 4, which is the length of the longest heat wave.

```
100.5
98.5
103.9
105.2
90.3
109.1
102.1
107.4
93.2
```

Complete the method `longestHeatWave`.

To solve the problem of finding the length of the longest heat wave in a list of temperatures, we need to follow these steps:

1. Understand the Definition of a Heat Wave: A heat wave in this context is defined as a sequence of two or more consecutive days with temperatures above a certain threshold.

2. Initialize Variables: We need two variables to keep track of:
- `longest_heat_wave`: This will store the length of the longest heat wave found.
- `current_heat_wave`: This will track the current sequence of consecutive days over the threshold.

3. Iterate Through the List of Temperatures: We will go through each temperature and check if it's above the threshold.

4. Check Each Temperature:
- If the temperature exceeds the threshold, increase the `current_heat_wave` counter.
- If the temperature does not exceed the threshold, compare `current_heat_wave` with `longest_heat_wave`. If `current_heat_wave` is greater, update `longest_heat_wave`. Then, reset `current_heat_wave` to zero because the sequence was broken.

5. Final Check: After the loop, we do a final comparison between `current_heat_wave` and `longest_heat_wave` to ensure any sequence at the end of the list is considered.

6. Result: The value of `longest_heat_wave` is the answer, representing the length of the longest heat wave.

Based on these steps and using the temperature list provided, the length of the longest heat wave based on a threshold of 100.5 is determined to be 2.