Can someone please explain this to me? I don't think I'm doing it right.

public class PracticeExam {

public static void main(String[] args) { int[][] data = { { 0, 1, 2, 3, 4, 5, 6 }, { 0, 1, 2, 3, 4, 5, 6 }, { 0, 1, 2, 3, 4, 5, 6 }, { 0, 1, 2, 3, 4, 5, 6 }, { 0, 1, 2, 3, 4, 5, 6 }, { 0, 1, 2, 3, 4, 5, 6 }, { 0, 1, 2, 3, 4, 5, 6 }, { 0, 1, 2, 3, 4, 5, 6 } }; System.out.println(data[0][1]); // input: TODO prompt the user for // 1) a row number // 2) a column number System.out.println("Enter a row number from 1 to 8: "); int rowSum = sumRow(rowNum, data); System.out.println("Enter a column number from 1 to 7: "); int colSum = sumColumn(ColNum, data); // processing: TODO implment the methods below //int rowSum = sumRow(rowNum, data); //int colSum = sumColumn(colNum, data); double all = overallAverage(data); // output: TODO display the three answers // using a method named displayResults

displayResults = }

}