Merge branch 'fdai7921' into 'master'

Fdai7921

See merge request fdai7600/PWN_Alpha_Dogs!3

src/main/java/org/example/Course.java

@@ -1,4 +1,9 @@
 package org.example;
+import java.io.*;
+import java.util.List;
+import java.util.ArrayList;
+
+
 
 /**
  * The Course class represents a course in a curriculum.
@@ -96,4 +101,37 @@ public class Course {
         System.out.println("Course Code: " + courseCode);
         System.out.println("Course Credits: " + courseCredit);
     }
+
+    public void writeToFile(String filename) {
+        try (PrintWriter writer = new PrintWriter(new FileWriter(filename))) {
+            writer.println(courseName);
+            writer.println(courseCode);
+            writer.println(courseCredit);
+            // Add any other fields you want to save
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static List<Course> readFromFile(String filename) {
+        List<Course> courses = new ArrayList<>();
+
+        try (BufferedReader reader = new BufferedReader(new FileReader(filename))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                String courseName = line;
+                String courseCode = reader.readLine();
+                int credits = Integer.parseInt(reader.readLine());
+                // Read any other fields you saved
+                Course course = new Course(courseName, courseCode, credits);
+                courses.add(course);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return courses;
+    }
+
+
 }

src/test/java/org/example/CourseTest.java

@@ -0,0 +1,110 @@
+package org.example;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import static org.junit.Assert.assertEquals;
+import java.io.*;
+import java.util.List;
+
+
+class CourseTest {
+
+    @Test
+    void printCourseInfo() {
+        // Create a new Course object
+        Course course = new Course("Introduction to Programming", "CS101", 3);
+
+        // Set up the expected output
+        String expectedCourseName = "Course Name: Introduction to Programming";
+        String expectedCourseCode = "Course Code: CS101";
+        String expectedCourseCredits = "Course Credits: 3";
+
+        // Redirect System.out to capture printed output
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        PrintStream originalOut = System.out;
+        System.setOut(new PrintStream(outputStream));
+
+        // Call the method to be tested
+        course.printCourseInfo();
+
+        // Reset System.out
+        System.setOut(originalOut);
+
+        // Get the printed output
+        String printedOutput = outputStream.toString().trim(); // trim to remove trailing newline
+
+        // Split the printed output into lines
+        String[] outputLines = printedOutput.split("\\r?\\n");
+
+        // Assert that each line matches the expected output
+        assertEquals(expectedCourseName, outputLines[0].trim());
+        assertEquals(expectedCourseCode, outputLines[1].trim());
+        assertEquals(expectedCourseCredits, outputLines[2].trim());
+    }
+
+    @Test
+    void writeToFile() {
+        // Create a temporary file for testing
+        String filename = "test_course_data.txt";
+
+        // Create a new course
+        Course course = new Course("Math", "C101", 3);
+
+        // Write course data to the temporary file
+        course.writeToFile(filename);
+
+        // Read course data from the temporary file
+        List<Course> courses = Course.readFromFile(filename);
+
+        // Assert that the read data matches the original course
+        assertEquals(1, courses.size());
+        Course readCourse = courses.get(0);
+        assertEquals("Math", readCourse.getCourseName());
+        assertEquals(3, readCourse.getCourseCredit());
+
+        // Delete the temporary file
+        File file = new File(filename);
+        if (file.exists()) {
+            file.delete();
+        }
+    }
+
+    @Test
+    void readFromFile() {
+        // Create a temporary file with sample course data
+        String filename = "test_course_data.txt";
+        try (PrintWriter writer = new PrintWriter(new FileWriter(filename))) {
+            writer.println("Math");
+            writer.println("C101");
+            writer.println(3);
+            writer.println("Science");
+            writer.println("C201");
+            writer.println(4);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        // Read course data from the temporary file
+        List<Course> courses = Course.readFromFile(filename);
+
+        // Assert that the read data matches the original course data
+        assertEquals(2, courses.size());
+
+        Course course1 = courses.get(0);
+        assertEquals("Math", course1.getCourseName());
+        assertEquals("C101", course1.getCourseCode());
+        assertEquals(3, course1.getCourseCredit());
+
+        Course course2 = courses.get(1);
+        assertEquals("Science", course2.getCourseName());
+        assertEquals("C201", course2.getCourseCode());
+        assertEquals(4, course2.getCourseCredit());
+
+        // Delete the temporary file
+        File file = new File(filename);
+        if (file.exists()) {
+            file.delete();
+        }
+    }
+}