38 lines
1.7 KiB
Markdown
38 lines
1.7 KiB
Markdown
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# Hints
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## 1. Creating a remote controlled car
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- [Define a constructor][constructor-syntax] that has two `int` parameters.
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- Store the two parameters as [fields][fields] to access them from the classes' methods.
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## 2. Creating a race track
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- [Define a constructor][constructor-syntax] that has one `int` parameter.
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- Store the parameter as a [field][fields] to access it from the class' method.
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## 3. Drive the car
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- Add a [field][fields] to keep track of the distance driven.
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- Add the car's speed to the [field][fields] that keeps track of the distance driven.
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## 4. Check for a drained battery
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- Add a [field][fields] to keep track of the remaining battery charge percentage (starts at 100%).
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- Remove the car's battery drain from the [field][fields] to keep track of the battery charge.
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- Don't update the distance driven if the battery is drained.
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- Remember that if the battery charge is less than the battery drain percentage, it is considered drained.
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## 5. Create the Nitro remote control car
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- [Instantiate][instance-constructors] an instance of the `RemoteControlCar` with the correct arguments.
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## 6. Check if a remote control car can finish a race
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- Solving this is probably best done by [repeatedly driving the car][while].
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- Remember that the car has a method to retrieve the distance it has driven.
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- Consider what to do when the battery has been drained before reaching the finish line.
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[constructor-syntax]: https://docs.oracle.com/javase/tutorial/java/javaOO/constructors.html
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[instance-constructors]: https://docs.oracle.com/javase/tutorial/java/javaOO/objectcreation.html
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[while]: https://docs.oracle.com/javase/tutorial/java/nutsandbolts/while.html
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[fields]: https://docs.oracle.com/javase/tutorial/java/javaOO/variables.html
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