From 9baabad4d498d26830f24b70435a924715cbe747 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20Fuhry?= <rene.fuhry@gmail.com>
Date: Fri, 17 Mar 2023 15:31:57 +0100
Subject: [PATCH] Completed reading in the CSV (#1)

* Created Matrix class

Created Matrix class with an empty main method

* Created Matrix class

Created Matrix class with an empty main method

* Created importCSV method

Created the empty method importCSV

* Completed importCSV method

Added BufferedReader with FileReader surrounded by a try/catch

* Added file parameter

Added it so I don't have a hardcoded file location

* Removed line variable

It just wasn't needed

* Created TestMatrix class

For now only has one test for the importCSV method

* Created empty printCSV method

gonna use it to print out the array which contains the array

* ReAdded line variable

It was needed after all

* Made result a global variable

So it can be used by other methods

* Array now initialized with correct size

I still don't know how to put the csv into the array tough

* done

don't ask how
---
 src/Matrix.java     | 49 +++++++++++++++++++++++++++++++++++++++++++++
 src/TestMatrix.java | 11 ++++++++++
 2 files changed, 60 insertions(+)
 create mode 100644 src/Matrix.java
 create mode 100644 src/TestMatrix.java

diff --git a/src/Matrix.java b/src/Matrix.java
new file mode 100644
index 0000000..ed3a668
--- /dev/null
+++ b/src/Matrix.java
@@ -0,0 +1,49 @@
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.FileReader;
+import java.io.FileNotFoundException;
+
+public class Matrix {
+    private int[][] matrix;
+
+    public static void main(String[] args) {}
+
+    public Matrix(String file) {
+        matrix = this.readCSV(file);
+    }
+
+    public int[][] readCSV(String file){
+        int[][] intMatrix = null;
+        try (BufferedReader br = new BufferedReader(new FileReader(file))) {
+            String line = br.readLine();
+            int rowCount = line.trim().split(";").length;
+            int columnCount = rowCount;
+            String[] lineArray = null;
+
+            intMatrix = new int[rowCount][columnCount];
+
+            for(int columnIndex = 0; line != null && columnIndex < intMatrix.length; columnIndex++, line = br.readLine()) {
+                lineArray = line.trim().split(";");
+                for(int rowIndex=0; rowIndex < intMatrix[columnIndex].length; rowIndex++) {
+                    intMatrix[columnIndex][rowIndex] = Integer.parseInt(lineArray[rowIndex]);
+                }
+            }
+            br.close();
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return intMatrix;
+    }
+
+    public void print() {
+        for(int columnIndex=0; columnIndex < matrix.length; columnIndex++) {
+            for(int rowIndex=0; rowIndex < matrix[columnIndex].length; rowIndex++) {
+                System.out.print(matrix[columnIndex][rowIndex]);
+            }
+            System.out.println();
+        }
+    }
+
+}
diff --git a/src/TestMatrix.java b/src/TestMatrix.java
new file mode 100644
index 0000000..7db94b0
--- /dev/null
+++ b/src/TestMatrix.java
@@ -0,0 +1,11 @@
+public class TestMatrix {
+    public static void main(String[] args) {
+        test1("");
+    }
+
+    public static void test1(String file) {
+        Matrix matrix = new Matrix(file);
+
+        matrix.print();
+    }
+}