Helena Zubkow

Okay, here's my attempt at putting the information into a new array. Can anyone tell me where I'm going wrong?

/* GradeExam.java * by Helena Zubkow */ package gradeexam; public class GradeExam { public static void main(String[] args) { //Create storage array // Students' answers to the questions char[][] answers = { {'A', 'B', 'A', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}, {'D', 'B', 'A', 'B', 'C', 'A', 'E', 'E', 'A', 'D'}, {'E', 'D', 'D', 'A', 'C', 'B', 'E', 'E', 'A', 'D'}, {'C', 'B', 'A', 'E', 'D', 'C', 'E', 'E', 'A', 'D'}, {'A', 'B', 'D', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}, {'B', 'B', 'E', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}, {'B', 'B', 'A', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}, {'E', 'B', 'E', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}}; // Key to the questions char[]keys = {'D', 'B', 'D', 'C', 'C', 'D', 'A', 'E', 'A', 'D'}; // Grade all answers for (int i = 0; i < answers.length; i++) { //Grade one student int correctCount = 0; for (int j = 0; j < answers[i].length; j++) { if(answers[i][j] == keys[j]) correctCount++; } System.out.println("Student " + i + "'s correct count is " + correctCount); int studentGrade[][] = new int [8][2]; int k = i; int l = correctCount; for (k = 0; k < studentGrade.length; k++) { for (l = 0; l < studentGrade.length; l++) { System.out.println(studentGrade); }
This is my output:
Student 0's correct count is 7
[[I@3e25a5
[[I@3e25a5
[[I@3e25a5
[[I@3e25a5
...
(snip)
...
[[I@3e25a5
Student 1's correct count is 6
[[I@19821f
...
(snip)
...
[[I@de6ced
BUILD SUCCESSFUL (total time: 1 second)

Okay, so I'm still stuck. I can't figure out how to read the data that's being printed into a new multi-dimensional array. I have no idea how to go from what I have now to those numbers going into a two-dimensional array like [0,7][1,6][2,5], etc so that I can sort the new array. Am I supposed to be using the scanner? I have an idea of what I need to do, but I don't know how to do code it.

Awesome, thank you for the tip about the curly braces. I actually did have that happen when I was playing with the code and couldn't figure out why, so thank you.

Thank you, Fred! What a warm welcome. This website is great.

Hi everyone,

I'm pretty new to java and I'm totally stuck on my homework assignment. Can anyone help me with a push in the right direction? What I'm supposed to be doing is to make the output print the students and their score in ascending order. Right now it grades the student and then lists them randomly. I'm thinking that I'm going to need to feed these scores into a multi-dimensional array so that I can sort them, but I'm having trouble figuring out how to do that? Should I be using the Scanner?

Any help is greatly greatly greatly appreciated! Thanks!


* GradeExam.java * by Helena Zubkow */ package gradeexam; public class GradeExam { public static void main(String[] args) { //Create storage array // Students' answers to the questions char[][] answers = { {'A', 'B', 'A', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}, {'D', 'B', 'A', 'B', 'C', 'A', 'E', 'E', 'A', 'D'}, {'E', 'D', 'D', 'A', 'C', 'B', 'E', 'E', 'A', 'D'}, {'C', 'B', 'A', 'E', 'D', 'C', 'E', 'E', 'A', 'D'}, {'A', 'B', 'D', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}, {'B', 'B', 'E', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}, {'B', 'B', 'A', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}, {'E', 'B', 'E', 'C', 'C', 'D', 'E', 'E', 'A', 'D'}}; // Key to the questions char[]keys = {'D', 'B', 'D', 'C', 'C', 'D', 'A', 'E', 'A', 'D'}; // Grade all answers for (int i = 0; i < answers.length; i++) { //Grade one student int correctCount = 0; for (int j = 0; j < answers[i].length; j++) { if(answers[i][j] == keys[j]) correctCount++; } System.out.println("Student " + i + "'s correct count is " + correctCount); int x = i; int y = correctCount; } }}