From 28b4d42f9c56824aa73f3b6dbaa1189785981084 Mon Sep 17 00:00:00 2001
From: fdai7921 <karl-rufus.witzel@informatik.hs-fulda.de>
Date: Wed, 7 Feb 2024 13:27:54 +0100
Subject: [PATCH] Adding deleteCourse method in Course class

---
 src/main/java/org/example/Course.java | 45 +++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/src/main/java/org/example/Course.java b/src/main/java/org/example/Course.java
index cc95d97..d990da4 100644
--- a/src/main/java/org/example/Course.java
+++ b/src/main/java/org/example/Course.java
@@ -185,4 +185,49 @@ public class Course {
         System.out.println("Added Course successfully!");
     }
 
+    public static void deleteCourse(String filename) {
+        List<Course> courses = readFromFile(filename);
+
+        if (courses.isEmpty()) {
+            System.out.println("No courses found.");
+            return;
+        }
+
+        Scanner scanner = new Scanner(System.in);
+
+        while (true) {
+            System.out.println("Select the course to delete (or 0 to go back to the menu):");
+
+            // Display available courses for selection
+            for (int i = 0; i < courses.size(); i++) {
+                System.out.println((i + 1) + ". " + courses.get(i).getCourseName());
+            }
+
+            int selection = scanner.nextInt();
+
+            if (selection == 0) {
+                return; // Return to the menu
+            } else if (selection < 1 || selection > courses.size()) {
+                System.out.println("Invalid selection.");
+            } else {
+                Course courseToDelete = courses.get(selection - 1);
+                courses.remove(courseToDelete);
+
+                try (FileWriter writer = new FileWriter(filename)) {
+                    for (Course course : courses) {
+                        writer.write(course.getCourseName() + "\n");
+                        writer.write(course.getCourseCode() + "\n");
+                        writer.write(course.getCourseCredit() + "\n");
+                        // Write any other fields you saved
+                    }
+                } catch (IOException e) {
+                    System.out.println("An error occurred while deleting the course.");
+                    e.printStackTrace();
+                }
+
+                System.out.println("Course deleted successfully.");
+                return;
+            }
+        }
+    }
 }