Practice-It

Write a method named mostUnique that accepts as its parameter a Scanner for an input file. The data in the file represents integer quiz scores separated by spaces. Each class period is on its own line and contains a different number of students. Your method should return the highest number of unique scores given in a single class period. The method should also print information about the number of unique scores given in each period, in a format described below.

On a given line, all occurrences of any particular number value will occur consecutively in the input. For example, if there is a sequence of occurrences of the number 8, there will not be any other occurrences of the number 8 on that same line outside of that sequence.

Given a Scanner named input referring to an input file that contains the following text:

10 10 10  9 9   8    3
3 3 8 10 9 7   7 6 6
4  1 9  9 10  7 7 
10  10   10 10

The call on mostUnique(input) should return 6 and generate the following output:

Period 1: 4 unique scores
Period 2: 6 unique scores
Period 3: 5 unique scores
Period 4: 1 unique scores

On the first line, there are 4 unique scores: 10, 9, 8 and 3. The second line contains 6 unique scores: 3, 8, 10, 9, 7 and 6. The third line contains 5 unique scores: 4, 1, 9, 10 and 7. The fourth line only has one unique score: 10. The value returned is 6 because it is the highest number of unique scores given in a class period.

Assume that the file exists, that it contains at least one line of data and that each line contains at least one score.