Functions update

AddFunctions.java

@@ -0,0 +1,38 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package studentgradingsystemproject;
+
+import java.util.GregorianCalendar;
+import static studentgradingsystemproject.StudentGradingSystemProject.attendances;
+import static studentgradingsystemproject.StudentGradingSystemProject.courses;
+import static studentgradingsystemproject.StudentGradingSystemProject.departments;
+import static studentgradingsystemproject.StudentGradingSystemProject.gradeses;
+import static studentgradingsystemproject.StudentGradingSystemProject.students;
+
+/**
+ *
+ * @author gram1
+ */
+public class AddFunctions {
+    public static void add_student(int std_id, String std_no, String std_name, String std_surname, char std_gender, String std_nationality, GregorianCalendar std_birthday){
+            Student st =new Student(std_id, std_no, std_name, std_surname,
+                                    std_gender, std_nationality, std_birthday);
+            students.add(st);
+    }
+    public static void add_course(int crs_id, int dept_id, String crs_code, String crs_name) {
+            Course cr =new Course(crs_id, dept_id, crs_code, crs_name);
+            courses.add(cr);}
+    public static void add_department(int dept_id, String dept_name) {
+            Department dr =new Department(dept_id, dept_name);
+            departments.add(dr);}
+    public static void add_grades(int grd_id, int std_id, int crs_id, float grd_mt, float grd_hw, float grd_final, String grd_lgrade) {
+            Grades gr =new Grades(grd_id, std_id, crs_id, grd_mt, grd_hw, grd_final, grd_lgrade);
+            gradeses.add(gr);}    
+    public static void add_attendance(int att_id, int std_id, int crs_id, GregorianCalendar att_date) {
+            Attendance at =new Attendance(att_id, std_id, crs_id, att_date);
+            attendances.add(at);}
+
+}

BackupFunctions.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package studentgradingsystemproject;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectOutputStream;
+import static studentgradingsystemproject.StudentGradingSystemProject.attendances;
+import static studentgradingsystemproject.StudentGradingSystemProject.courses;
+import static studentgradingsystemproject.StudentGradingSystemProject.departments;
+import static studentgradingsystemproject.StudentGradingSystemProject.gradeses;
+import static studentgradingsystemproject.StudentGradingSystemProject.students;
+
+/**
+ *
+ * @author gram1
+ */
+public class BackupFunctions {
+    public static void backup_student() throws IOException{
+     File outfile  = new File("students.dat");
+     FileOutputStream outfilestream = new FileOutputStream(outfile);
+     ObjectOutputStream outObjectStream = new ObjectOutputStream(outfilestream);
+
+     outObjectStream.writeObject(students);
+     outObjectStream.close();
+
+    }
+    public static void backup_course() throws IOException{
+     File outfile  = new File("courses.dat");
+     FileOutputStream outfilestream = new FileOutputStream(outfile);
+     ObjectOutputStream outObjectStream = new ObjectOutputStream(outfilestream);
+
+     outObjectStream.writeObject(courses);
+     outObjectStream.close();
+
+    }
+    public static void backup_department() throws IOException{
+     File outfile  = new File("departments.dat");
+     FileOutputStream outfilestream = new FileOutputStream(outfile);
+     ObjectOutputStream outObjectStream = new ObjectOutputStream(outfilestream);
+
+     outObjectStream.writeObject(departments);
+     outObjectStream.close();
+
+    }
+    public static void backup_grades() throws IOException{
+     File outfile  = new File("gradeses.dat");
+     FileOutputStream outfilestream = new FileOutputStream(outfile);
+     ObjectOutputStream outObjectStream = new ObjectOutputStream(outfilestream);
+
+     outObjectStream.writeObject(gradeses);
+     outObjectStream.close();
+
+    }
+    public static void backup_attendance() throws IOException{
+     File outfile  = new File("attendances.dat");
+     FileOutputStream outfilestream = new FileOutputStream(outfile);
+     ObjectOutputStream outObjectStream = new ObjectOutputStream(outfilestream);
+
+     outObjectStream.writeObject(attendances);
+     outObjectStream.close();
+
+    }
+}

DelFunctions.java

@@ -0,0 +1,86 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package studentgradingsystemproject;
+
+import java.util.Iterator;
+import static studentgradingsystemproject.StudentGradingSystemProject.attendances;
+import static studentgradingsystemproject.StudentGradingSystemProject.courses;
+import static studentgradingsystemproject.StudentGradingSystemProject.departments;
+import static studentgradingsystemproject.StudentGradingSystemProject.gradeses;
+import static studentgradingsystemproject.StudentGradingSystemProject.students;
+
+/**
+ *
+ * @author gram1
+ */
+public class DelFunctions {
+        public static void delete_student(int std_id) {
+      Student st=null;
+      Boolean found=false;
+      Iterator <Student> itr = students.iterator();
+      while (itr.hasNext()) {
+          st = itr.next(); 
+          if(std_id==st.getStd_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) students.remove(st);
+      }
+    public static void delete_course(int crs_id) {
+      Course cr=null;
+      Boolean found=false;
+      Iterator <Course> itr = courses.iterator();
+      while (itr.hasNext()) {
+          cr = itr.next(); 
+          if(crs_id==cr.getCrs_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) courses.remove(cr);
+      }
+    public static void delete_department(int dept_id) {
+      Department dr=null;
+      Boolean found=false;
+      Iterator <Department> itr = departments.iterator();
+      while (itr.hasNext()) {
+          dr = itr.next(); 
+          if(dept_id==dr.getDept_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) departments.remove(dr);
+      }
+    public static void delete_grades(int grd_id) {
+      Grades gr=null;
+      Boolean found=false;
+      Iterator <Grades> itr = gradeses.iterator();
+      while (itr.hasNext()) {
+          gr = itr.next(); 
+          if(grd_id==gr.getGrd_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) gradeses.remove(gr);
+      }
+    public static void delete_attendance(int att_id) {
+      Attendance at=null;
+      Boolean found=false;
+      Iterator <Attendance> itr = attendances.iterator();
+      while (itr.hasNext()) {
+          at = itr.next(); 
+          if(att_id==at.getAtt_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) attendances.remove(at);
+      }
+
+}

EditFunctions.java

@@ -0,0 +1,122 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package studentgradingsystemproject;
+
+import java.util.GregorianCalendar;
+import java.util.Iterator;
+import static studentgradingsystemproject.StudentGradingSystemProject.attendances;
+import static studentgradingsystemproject.StudentGradingSystemProject.courses;
+import static studentgradingsystemproject.StudentGradingSystemProject.departments;
+import static studentgradingsystemproject.StudentGradingSystemProject.gradeses;
+import static studentgradingsystemproject.StudentGradingSystemProject.students;
+
+/**
+ *
+ * @author gram1
+ */
+public class EditFunctions {
+
+    /**
+     *
+     * @param std_id
+     * @param std_no
+     * @param std_name
+     * @param std_surname
+     * @param std_gender
+     * @param std_nationality
+     * @param std_birthday
+     */
+    public static void edit_student(int std_id, String std_no, String std_name, String std_surname, char std_gender, String std_nationality, GregorianCalendar std_birthday) {
+
+     Student st=null;
+      Boolean found=false;
+      Iterator <Student> itr = students.iterator();
+      while (itr.hasNext()) {
+          st = itr.next(); 
+          if(std_id==st.getStd_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) {
+          st.setStd_no(std_no);
+          st.setStd_name(std_name);
+          st.setStd_surname(std_surname);
+          st.setStd_nationality(std_nationality);
+          st.setStd_gender(std_gender);
+          st.setStd_birthdate(std_birthday);
+      }
+    }  
+    public static void edit_course(int crs_id, int dept_id, String crs_code, String crs_name) {
+
+     Course cr =null;
+      Boolean found=false;
+      Iterator <Course> itr = courses.iterator();
+      while (itr.hasNext()) {
+          cr = itr.next(); 
+          if(crs_id==cr.getCrs_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) {
+          cr.setCrs_code(crs_code);
+          cr.setCrs_name(crs_name);
+      }
+    }
+    public static void edit_department(int dept_id, String dept_name) {
+
+     Department dr =null;
+      Boolean found=false;
+      Iterator <Department> itr = departments.iterator();
+      while (itr.hasNext()) {
+          dr = itr.next(); 
+          if(dept_id==dr.getDept_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) {
+          dr.setDept_name(dept_name);
+      }
+    }
+    public static void edit_grades(int grd_id, int std_id, int crs_id, float grd_mt, float grd_hw, float grd_final, String grd_lgrade) {
+
+     Grades gr =null;
+      Boolean found=false;
+      Iterator <Grades> itr = gradeses.iterator();
+      while (itr.hasNext()) {
+          gr = itr.next(); 
+          if(grd_id == gr.getGrd_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) {
+          gr.setGrd_mt(grd_mt);
+          gr.setGrd_hw(grd_hw);
+          gr.setGrd_final(grd_final);
+          gr.setGrd_lgrade(grd_lgrade);
+      }
+    }
+    public static void edit_attendance(int att_id, int std_id, int crs_id, GregorianCalendar att_date) {
+
+     Attendance at =null;
+      Boolean found=false;
+      Iterator <Attendance> itr = attendances.iterator();
+      while (itr.hasNext()) {
+          at = itr.next(); 
+          if(att_id==at.getAtt_id()) {
+              found=true;
+              break;
+          }
+      }
+      if (found) {
+          at.setAtt_date(att_date);
+      }
+    }
+
+}