Jane Lee, $100,98,97,100$

Aaron X$.$ Schmidt, $37,42,49,54$

Frank von Tardy, $2,3,10,7$

We can read the file one line at a time and use the indexof method to get the positions of the commas. The call line.indexof$(",",$ pos$)$

gives the position of the next comma at or beyond the position pos, or $-1$ if there is no match.

Rearrange the lines below to compute the total score for a student. Assume that each student has at least one score.

How to use this tool $v$

Unused

int start $=$ end $+1$ ;

end $=$ line. indexof $(",",$ start$)$;

if end $==-1)$

String name $=$ line. substring $,$ end