LESSON 179 OF 414 · PROJECTS: EVERYDAY PROGRAMS

Report Card V6 - Class Statistics in Scala

Practice

Compute three class statistics from a list of scores: the highest, the lowest, and the average.

You start with:

val scores = List(92, 78, 85, 67, 74, 88, 91, 58)

Build:

Highest: 92
Lowest: 58
Average: 79

Rules:

highest is the largest value in scores.
lowest is the smallest value in scores.
average is the sum of all scores divided by how many there are, rounded down (integer division).
Print "Highest: ", "Lowest: " and "Average: " on three lines, in the order of the sample output (println(s"Highest: $highest")).

Use scores.max / scores.min on a List[Int]; sum with a loop.

val scores = List(92, 78, 85, 67, 74, 88, 91, 58)

val highest = scores.max
val lowest = scores.min
var total = 0
for (s <- scores) {
    total += s
}
val average = total / scores.size

println(s"Highest: $highest")
println(s"Lowest: $lowest")
println(s"Average: $average")

STEP 1 OF 9

Guided

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Report Card V6 - Class Statistics in Scala

Report Card V6 in Scala