Amir Hossein Roosta-Academic System

AcademicSystem.java

@@ -0,0 +1,134 @@
+import java.util.ArrayList;
+interface EducationalInstitution {
+     String displayInfo();
+}
+
+abstract class University implements EducationalInstitution {
+    public String name;
+    public int studentCount;
+    public double tuitionFee;
+    public ArrayList<Student> students;
+
+
+
+
+    public boolean transferStudent(Student student, University toUniversity) {
+        if (this.students.contains(student)) {
+            this.students.remove(student);
+            this.studentCount--;
+            toUniversity.students.add(student);
+            toUniversity.studentCount++;
+            student.setUniversity(toUniversity);
+            return true;
+        }
+        return false;
+    }
+
+    University(String name, double tuitionFee) {
+        this.name = name;
+        this.tuitionFee = tuitionFee;
+        this.students = new ArrayList<>();
+        this.studentCount = 0;
+    }
+}
+
+class Student implements EducationalInstitution {
+    private String name;
+    public University university;
+    private double balance;
+
+    public Student(String name, double balance, University university) {
+        setName(name);
+        this.balance=balance;
+        if(balance >= university.tuitionFee){
+            this.university=university;
+            university.students.add(this);
+            university.studentCount++;
+            this.balance -= university.tuitionFee;
+
+
+        } else {System.out.println("Not enough balance");}
+
+    }
+
+    @Override
+    public String displayInfo() {
+        if (getUniversity() == null){return "Name: " + getName() + "\nUniversity: " + "Not Enrolled" + "\nBalance: " + getBalance();}
+        else return "Name: " + this.name + "\nUniversity: " + getUniversity().name + "\nBalance: " + getBalance();
+    }
+
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public University getUniversity() {
+        return university;
+    }
+    public void  setUniversity(University toUniversity) {
+            this.university=toUniversity;
+
+    }
+    public double getBalance() {
+        return balance;
+    }
+
+
+}
+
+class SbuUniversity extends University {
+    public SbuUniversity(String name, double tuitionFee) {
+        super(name,tuitionFee);
+    }
+
+
+    @Override
+    public String displayInfo() {
+        return "SBU University\nTuition Fee: " + String.format("%.1f", this.tuitionFee) + "\nStudent Count: " + this.studentCount;    }
+}
+
+class SutUniversity extends University {
+
+    SutUniversity(String name, double tuitionFee) {
+        super(name,tuitionFee);
+    }
+
+
+
+    @Override
+    public String displayInfo() {
+        return "SUT University\nTuition Fee: " + String.format("%.1f", this.tuitionFee) + "\nStudent Count: " + this.studentCount;
+
+    }
+}
+public class AcademicSystem {
+    public static void main(String[] args) {
+        SbuUniversity sbu = new SbuUniversity("Shahid Beheshti University", 1500.0);
+        SutUniversity sut = new SutUniversity("Sharif University of Technology", 2000.0);
+
+        Student s1 = new Student("Ali", 3000.0, sbu);
+        Student s2 = new Student("Sara", 1000.0, sut);
+
+        System.out.println(s1.displayInfo());
+        System.out.println(s2.displayInfo());
+
+        System.out.println(sbu.displayInfo());
+        System.out.println(sut.displayInfo());
+
+        boolean transferred = sbu.transferStudent(s1, sut);
+        if (transferred) {
+            System.out.println("Student transferred successfully.");
+        } else {
+            System.out.println("Student transfer failed.");
+        }
+
+        System.out.println(s1.displayInfo());
+        System.out.println(sbu.displayInfo());
+        System.out.println(sut.displayInfo());
+
+    }
+}

EducationSystem.java

@@ -1,6 +1,6 @@
 import java.util.ArrayList;
 interface EducationalInstitution {
-    String displayInfo();
+     String displayInfo();
 }
 
 abstract class University implements EducationalInstitution {
@@ -9,10 +9,26 @@ abstract class University implements EducationalInstitution {
     public double tuitionFee;
     public ArrayList<Student> students;
 
-    public boolean transferStudent(Student student, University university) {
+
+
+
+    public boolean transferStudent(Student student, University toUniversity) {
+        if (this.students.contains(student)) {
+            this.students.remove(student);
+            this.studentCount--;
+            toUniversity.students.add(student);
+            toUniversity.studentCount++;
+            student.setUniversity(toUniversity);
+            return true;
+        }
+        return false;
     }
 
     University(String name, double tuitionFee) {
+        this.name = name;
+        this.tuitionFee = tuitionFee;
+        this.students = new ArrayList<>();
+        this.studentCount = 0;
     }
 }
 
@@ -22,41 +38,97 @@ class Student implements EducationalInstitution {
     private double balance;
 
     public Student(String name, double balance, University university) {
+        setName(name);
+        this.balance=balance;
+        if(balance >= university.tuitionFee){
+            this.university=university;
+            university.students.add(this);
+            university.studentCount++;
+            this.balance -= university.tuitionFee;
+
+
+        } else {System.out.println("Not enough balance");}
+
     }
 
     @Override
     public String displayInfo() {
+        if (getUniversity() == null){return "Name: " + getName() + "\nUniversity: " + "Not Enrolled" + "\nBalance: " + getBalance();}
+        else return "Name: " + this.name + "\nUniversity: " + getUniversity().name + "\nBalance: " + getBalance();
     }
 
+
     public String getName() {
+        return name;
     }
 
     public void setName(String name) {
+        this.name = name;
     }
 
     public University getUniversity() {
+        return university;
     }
+    public void  setUniversity(University toUniversity) {
+            this.university=toUniversity;
 
+    }
     public double getBalance() {
+        return balance;
     }
+
+
 }
 
 class SbuUniversity extends University {
     public SbuUniversity(String name, double tuitionFee) {
+        super(name,tuitionFee);
     }
 
+
     @Override
     public String displayInfo() {
-    }
+        return "SBU University\nTuition Fee: " + String.format("%.1f", this.tuitionFee) + "\nStudent Count: " + this.studentCount;    }
 }
 
 class SutUniversity extends University {
 
     SutUniversity(String name, double tuitionFee) {
+        super(name,tuitionFee);
     }
 
+
+
     @Override
     public String displayInfo() {
+        return "SUT University\nTuition Fee: " + String.format("%.1f", this.tuitionFee) + "\nStudent Count: " + this.studentCount;
 
     }
 }
+public class EducationSystem {
+    public static void main(String[] args) {
+        SbuUniversity sbu = new SbuUniversity("Shahid Beheshti University", 1500.0);
+        SutUniversity sut = new SutUniversity("Sharif University of Technology", 2000.0);
+
+        Student s1 = new Student("Ali", 3000.0, sbu);
+        Student s2 = new Student("Sara", 1000.0, sut);
+
+        System.out.println(s1.displayInfo());
+        System.out.println(s2.displayInfo());
+
+        System.out.println(sbu.displayInfo());
+        System.out.println(sut.displayInfo());
+
+        boolean transferred = sbu.transferStudent(s1, sut);
+        if (transferred) {
+            System.out.println("Student transferred successfully.");
+        } else {
+            System.out.println("Student transfer failed.");
+        }
+
+        System.out.println(s1.displayInfo());
+        System.out.println(sbu.displayInfo());
+        System.out.println(sut.displayInfo());
+
+    }
+}