Awesome!
Completion rate improved to 2.38SectionΒ 1. ChapterΒ 21
single
Challenge: Selecting the Best Cars on the Production Line
Swipe to show menu
Task
Swipe to start coding
At the factory, you need to process a list of cars, filter them based on mileage, sort them according to specific criteria, and display the results.
Each car is represented by the Car class, which contains an id as a unique identifier, a model specifying the carβs name, a year indicating when it was manufactured, and a mileage field representing the total distance it has traveled.
- Filter the cars, keeping only those with a mileage of 30,000 miles or less using the
filter()method. - Sort the cars by
yearin ascending order usingcomparingInt()method. - Once the cars are sorted by
year, reverse the order to have the newest cars first usingreversed()method. - If two cars have the same
year, sort them bymileagein ascending order usingthenComparing()method. - Convert each car object to a string representation, using the
toString()method. - Print the final list to the console, using a method reference to
println().
Solution
Everything was clear?
Thanks for your feedback!
SectionΒ 1. ChapterΒ 21
single
Ask AI
Ask AI
Ask anything or try one of the suggested questions to begin our chat