workshop done

.gitignore

@@ -0,0 +1,30 @@
+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+.kotlin
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" default="true" project-jdk-name="25" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Workshop 02 - IntroToOOP.iml" filepath="$PROJECT_DIR$/Workshop 02 - IntroToOOP.iml" />
+    </modules>
+  </component>
+</project>

Workshop 02 - IntroToOOP.iml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

src/Course.java

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+
+public class Course {
+    private String courseName;
+    private String courseCode;
+    private int capacity;
+
+    public Course(String courseName, String courseCode, int capacity)
+    {
+        this.courseName = courseName;
+        this.courseCode = courseCode;
+        this.capacity = capacity;
+    }
+
+    public String getCourseName()
+    {
+        return courseName;
+    }
+
+    public String getCourseCode()
+    {
+        return courseCode;
+    }
+
+    public int getCapacity()
+    {
+        return capacity;
+    }
+
+    public boolean reduceCapacity()
+    {
+        if (capacity > 0)
+        {
+            capacity--;
+            return true;
+        }
+        return false;
+    }
+
+    public void increaseCapacity()
+    {
+        capacity++;
+    }
+}

src/Main.java

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+import java.util.Scanner;
+
+public class Main
+{
+    public static void main(String[] args)
+    {
+
+        Scanner input = new Scanner(System.in);
+
+        // گرفتن اطلاعات دانش‌آموز از ورودی
+        System.out.print("Enter student name: ");
+        String name = input.nextLine();
+
+        System.out.print("Enter student ID: ");
+        String studentId = input.nextLine();
+
+        Student s1 = new Student(name, studentId);
+
+        // ساخت 3 درس
+        Course c1 = new Course("Advanced Programming", "AP1404", 2);
+        Course c2 = new Course("Data Structures", "DS1404", 1);
+        Course c3 = new Course("Database Systems", "DB1404", 3);
+
+        // ساخت سیستم ثبت نام
+        RegistrationSystem sys = new RegistrationSystem();
+
+        // اضافه کردن درس‌ها به سیستم
+        sys.addCourseToSystem(c1);
+        sys.addCourseToSystem(c2);
+        sys.addCourseToSystem(c3);
+
+        // ثبت‌نام خودکار دانش‌آموز
+        s1.addCourse(c1);
+        s1.addCourse(c2);
+
+        // حذف یکی از درس‌ها
+        s1.dropCourse(c2);
+
+        // نمایش درس‌های ثبت‌شده
+        System.out.println("\nFinal registered courses:");
+        s1.showRegisteredCourses();
+
+        // نمایش ظرفیت باقی‌مانده‌ی همه درس‌ها
+        System.out.println("\nRemaining course capacities:");
+        sys.showAllCourses();
+    }
+}

src/RegistrationSystem.java

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+import java.util.ArrayList;
+
+public class RegistrationSystem {
+    private ArrayList<Course> courses;
+
+    public RegistrationSystem() {
+        courses = new ArrayList<>();
+    }
+
+    public void addCourseToSystem(Course c) {
+        // Add the course to the system
+        courses.add(c);
+    }
+
+    public Course findCourseByCode(String code) {
+        // Search for a course by course code
+        for (Course c : courses) {
+            if (c.getCourseCode().equals(code)) {
+                return c;
+            }
+        }
+        return null;
+    }
+
+    public void showAllCourses() {
+        // Print all courses in the system
+        for (Course c : courses) {
+            System.out.println(
+                    c.getCourseName() + " - " +
+                            c.getCourseCode() +
+                            " | Remaining capacity: " +
+                            c.getCapacity()
+            );
+        }
+    }
+}

src/Student.java

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+import java.util.ArrayList;
+
+public class Student {
+    private String name;
+    private String studentId;
+    private ArrayList<Course> registeredCourses;
+
+    public Student(String name, String studentId)
+    {
+        this.name = name;
+        this.studentId = studentId;
+        this.registeredCourses = new ArrayList<>();
+    }
+
+    public String getName()
+    {
+        return name;
+    }
+
+    public String getStudentId()
+    {
+        return studentId;
+    }
+
+    public boolean addCourse(Course c)
+    {
+        // Check capacity > 0
+        if (c.getCapacity() > 0)
+        {
+            registeredCourses.add(c);
+            c.reduceCapacity();
+            return true;
+        }
+        return false;
+    }
+
+    public boolean dropCourse(Course c)
+    {
+        if (registeredCourses.remove(c))
+        {
+            c.increaseCapacity();
+            return true;
+        }
+        return false;
+    }
+
+    public void showRegisteredCourses()
+    {
+        System.out.println("Registered Courses for " + name + ":");
+        if (registeredCourses.isEmpty())
+        {
+            System.out.println("No courses registered.");
+        }
+        for (Course c : registeredCourses)
+        {
+            System.out.println(c.getCourseName() + " - " + c.getCourseCode());
+        }
+    }
+}