LESSON 175 OF 410 · PROJECTS: EVERYDAY PROGRAMS

Report Card V6 - Class Statistics in Java

Practice

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

You start with:

List<Integer> scores = Arrays.asList(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 (System.out.println("Highest: " + highest);).

Use Collections.max / Collections.min on a List<Integer>; sum with a loop.

List<Integer> scores = Arrays.asList(92, 78, 85, 67, 74, 88, 91, 58);

int highest = Collections.max(scores);
int lowest = Collections.min(scores);
int total = 0;
for (int s : scores) total += s;
int average = total / scores.size();

System.out.println("Highest: " + highest);
System.out.println("Lowest: " + lowest);
System.out.println("Average: " + average);

STEP 1 OF 8

Guided

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Report Card V6 - Class Statistics in Java

Report Card V6 in Java