Question $6$

$15$ pts

Line$-$Based File Processing

Write a static method named plusScores that accepts as a parameter a Scanner containing a series of lines that represent student records. Each student record takes up two lines of input. The fi rst line has the student's name and the second line has a series of plus and minus characters. B elow is a sample input:

Kane, Erica

cdots$+$cdots$+$

Chandler, Adam $+$cdots$+$

Martin, Jake

$+++++++$

Dillon, Amanda

$++-4+++-$

The number of plus$/$minus characters will vary, but you may assume that at least one such charact er appears and that no other characters appear on the second line of each pair. For each student you should produce a line of output with the student's name followed by a colon followed by the percent of plus characters. For example, if the input above is stored in a Scanner called input, the call of plusScores$($input$)$; should produce the following output:

Kane, Erica: $40\mathrm{.}0\%$

plus Chandler, Adam: $75\mathrm{.}0\%$ plus

Martin, Jake: $100\mathrm{.}0\%$ plus

Dillon, Amanda: $62\mathrm{.}5\%$ plus

Write your code below:

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