Android™ How to Program, Second Edition

Method outputGrades

Method outputGrades (lines 140–164) uses nested for statements to output values of the array grades and each student’s semester average. The output (Fig. E.18) shows the result, which resembles the tabular format of a professor’s physical grade book. Lines 146–147 print the column headings for each test. We use a counter-controlled for statement here so that we can identify each test with a number. Similarly, the for statement in lines 152–163 first outputs a row label using a counter variable to identify each student (line 154). Although array indices start at 0, lines 147 and 154 output test + 1 and student + 1, respectively, to produce test and student numbers starting at 1 (see Fig. E.18). The inner for statement (lines ...