initial commit

Main.java

+public class Main {
+
+
+    /**
+     * The Student class represents a student in a student administration system.
+     * It holds the student details relevant in our context.
+     *
+     * @author Roholla
+     * @version 0.0
+     */
+    public static class Student {
+        /**
+         * student’s first name
+         */
+        private String firstName;
+        /**
+         * student’s last name
+         */
+        private String lastName;
+        /**
+         * student's ID
+         */
+        private String id;
+        /**
+         * student's grade
+         */
+        private int grade;
+
+        /**
+         * Create a new student with a given name and ID number.
+         *
+         * @param fName student's first name
+         * @param lName student's last name
+         * @param sID student's ID
+         */
+        public Student(String fName, String lName, String sID) {
+            firstName = fName;
+            lastName = lName;
+            id = sID;
+            grade = 0;
+        }
+
+        /**
+         * @return  student's first name
+         */
+        public String getFirstName() {
+            return firstName;
+        }
+
+        /**
+         * @return student's last name
+         */
+        public String getLastName() {
+            return lastName;
+        }
+
+        /**
+         * @return student's id
+         */
+        public String getId() {
+            return id;
+        }
+
+        /**
+         * @return student's grade
+         */
+        public int getGrade() {
+            return grade;
+        }
+
+        /**
+         * @param firstName student's first name to be set
+         */
+        public void setFirstName(String firstName) {
+            this.firstName = firstName;
+        }
+
+        /**
+         * @param lastName student's last name to be set
+         */
+        public void setLastName(String lastName) {
+            this.lastName = lastName;
+        }
+
+        /**
+         * @param id student's id to be set
+         */
+        public void setId(String id) {
+            this.id = id;
+        }
+
+        /**
+         * @param grade student's grade to be set
+         */
+        public void setGrade(int grade) {
+            this.grade = grade;
+        }
+
+        /**
+         * Print the student’s last name and ID number to the output terminal.
+         */
+        public void print() {
+            System.out.println(lastName + ", student ID: " + id + ", grade: " + grade);
+        }
+
+    }
+
+    public static class Lab {
+        private Student[] students;
+        private int avg;
+        private String day;
+        private int capacity;
+        private int currentSize;
+        public Lab(int capacity, String day) {
+            students = new Student[capacity];
+            this.capacity = capacity;
+            this.day = day;
+            currentSize = 0;
+            avg = 0;
+        }
+        public void enrollStudent(Student std) {
+            if (currentSize < capacity)
+                students[currentSize++] = std;
+            else
+                System.out.println("Lab is full!!!");
+        }
+        public void print() {
+            for (int i = 0; i < currentSize; i++) {
+                System.out.print((i + 1) + ". ");
+                students[i].print();
+            }
+
+        }
+        public Student[] getStudents() {
+            return students;
+        }
+        public void setStudents(Student[] students) {
+            for(Student si: students)
+                enrollStudent(si);
+        }
+        public int getAvg() {
+            return avg;
+        }
+        public void calculateAvg() {
+            int sum = 0;
+            for(int i = 0; i < currentSize; i++)
+                sum += students[i].getGrade();
+            avg = sum / currentSize;
+        }
+        public String getDay() {
+            return day;
+        }
+        public void setDay(String day) {
+            this.day = day;
+        }
+        public int getCapacity() {
+            return capacity;
+        }
+        public void setCapacity(int capacity) {
+            this.capacity = capacity;
+        }
+    }
+
+}

Run.java

+public class Run {
+    public static void main(String[] args) {
+        Main.Student std1 = new Main.Student("Ehsan","Edalat", "9031066");
+        Main.Student std2 = new Main.Student("Seyed", "Ahmadpanah", "9031806");
+        Main.Student std3 = new Main.Student("Ahmad", "Asadi", "9031054");
+
+        std1.setGrade(15);
+
+        std2.setGrade(11);
+
+        std3.setFirstName("HamidReza");
+        Main.Student[] students = {std1, std2, std3};
+        Main.Lab lab = new Main.Lab(3, "MON");
+        lab.setStudents(students);
+        lab.print();
+
+    }
+}