First Commit

Lab2/src/main/java/org/lumijiez/managers/GroupManager.java

@@ -0,0 +1,35 @@
+package org.lumijiez.managers;
+
+import org.lumijiez.base.Group;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+public class GroupManager implements Serializable {
+    private final List<Group> groups = new ArrayList<>();
+
+    public Group getGroup(String groupName) {
+        for (Group group : groups) {
+            if (group.getName().equals(groupName)) {
+                return group;
+            }
+        }
+        Group newGroup = new Group(groupName);
+        groups.add(newGroup);
+        return newGroup;
+    }
+
+    public void addGroup(Group group) {
+        groups.add(group);
+    }
+
+    public List<Group> getGroups() {
+        return groups;
+    }
+
+    public void deleteGroup(Group group) {
+        groups.remove(group);
+    }
+
+}

Lab2/src/main/java/org/lumijiez/managers/Manager.java

@@ -0,0 +1,59 @@
+package org.lumijiez.managers;
+
+import org.lumijiez.base.Grade;
+import org.lumijiez.base.Group;
+import org.lumijiez.base.NameSurnameGroup;
+import org.lumijiez.base.Student;
+
+import java.io.Serializable;
+
+public class Manager implements Serializable {
+    GroupManager groupManager;
+
+    public Manager() {
+        this.groupManager = new GroupManager();
+    }
+
+    public void addGroup(String groupName) {
+        groupManager.addGroup(new Group(groupName));
+    }
+
+    public void addStudent(NameSurnameGroup NSG) {
+        Group currentGroup = groupManager.getGroup(NSG.group());
+        currentGroup.addStudent(new Student(NSG.name(), NSG.surname(), currentGroup));
+    }
+
+    public void printStudents() {
+        for (Group group : groupManager.getGroups()) {
+            for (Student student : group.getStudents()) {
+                System.out.println(student.getFullname() + " " + student.getGroup().getName());
+            }
+        }
+    }
+
+    public void printGroups() {
+        for (Group group : groupManager.getGroups()) {
+            System.out.println(group.getName());
+        }
+    }
+
+    public void printGrades(NameSurnameGroup NSG) {
+        Student student = groupManager.getGroup(NSG.group()).getStudent(NSG.name(), NSG.surname());
+        for (Grade grade : student.getGrades()) {
+            System.out.println(grade.getSubject() + " " + grade.getGrade());
+        }
+    }
+
+    public void addGrade(NameSurnameGroup NSG, Grade grade) {
+        Student student = groupManager.getGroup(NSG.group()).getStudent(NSG.name(), NSG.surname());
+        student.addGrade(grade);
+    }
+
+    public void removeStudent(NameSurnameGroup NSG) {
+        Student student = groupManager.getGroup(NSG.group()).getStudent(NSG.name(), NSG.surname());
+        groupManager.getGroup(NSG.group()).deleteStudent(student);
+        if (student.getGroup().getStudents().isEmpty()) {
+            groupManager.getGroups().remove(student.getGroup());
+        }
+    }
+}