Java Reference
In-Depth Information
49
// loop through rows of grades array
for
(
int
[] studentGrades : grades)
{
// loop through columns of current row
for
(
int
grade : studentGrades)
{
// if grade less than lowGrade, assign it to lowGrade
if
(grade < lowGrade)
lowGrade = grade;
}
}
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return
lowGrade;
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}
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// find maximum grade
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public
int
getMaximum()
66
{
67
// assume first element of grades array is largest
68
int
highGrade = grades[
0
][
0
];
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// loop through rows of grades array
71
for
(
int
[] studentGrades : grades)
72
{
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// loop through columns of current row
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for
(
int
grade : studentGrades)
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{
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// if grade greater than highGrade, assign it to highGrade
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if
(grade > highGrade)
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highGrade = grade;
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}
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}
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return
highGrade;
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}
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// determine average grade for particular set of grades
public
double
getAverage(
int
[] setOfGrades)
{
int
total =
0
;
// sum grades for one student
for
(
int
grade : setOfGrades)
total += grade;
// return average of grades
return
(
double
) total / setOfGrades.length;
}
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// output bar chart displaying overall grade distribution
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public
void
outputBarChart()
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{
Fig. 7.18
|
GradeBook
class using a two-dimensional array to store grades. (Part 2 of 4.)
