In this simple Student Management System, you will be learning a few core Java concepts and OOPS concepts.
Java Project Source Code - School Management System
This project just uses core java without any GUI. This is for those who just have started programming in java and want to learn a little more about object-oriented programming applications in core java.
Let's first create a Java project in Eclipse IDE and add the following Java classes to the project.
Student
Let's create a Student class with the following fields:
package com.java.sms; /** * This class is responsible for keeping the * track of students fees, name ,grade & fees * paid. * */ public class Student { private int id; private String name; private int grade; private int feesPaid; private int feesTotal; /** * To create a new student by initializing. * Fees for every student is $30,000. * Fees paid initially is 0. * @param id id for the student: unique. * @param name name of the student. * @param grade grade of the student. */ public Student(int id, String name,int grade){ this.feesPaid=0; this.feesTotal=30000; this.id=id; this.name=name; this.grade=grade; } //Not going to alter student's name, student's id. /** * Used to update the student's grade. * @param grade new grade of the student. */ public void setGrade(int grade){ this.grade=grade; } /** * Keep adding the fees to feesPaid Field. * Add the fees to the fees paid. * The school is going receive the funds. * * @param fees the fees that the student pays. */ public void payFees(int fees){ feesPaid+=fees; School.updateTotalMoneyEarned(feesPaid); } /** * * @return id of the student. */ public int getId() { return id; } /** * * @return name of the student. */ public String getName() { return name; } /** * * @return the grade of the student. */ public int getGrade() { return grade; } /** * * @return fees paid by the student. */ public int getFeesPaid() { return feesPaid; } /** * * @return the total fees of the student. */ public int getFeesTotal() { return feesTotal; } /** * * @return the remaining fees. */ public int getRemainingFees(){ return feesTotal-feesPaid; } @Override public String toString() { return "Student's name :"+name+ " Total fees paid so far $"+ feesPaid; } }
This class is responsible for keeping the track of students' fees, name, grade & fees paid.
Teacher
Let's create a Teacher class with the following fields:
package com.java.sms;
/**
* This class is responsible for keeping the track
* of teacher's name, id, salary.
*/
public class Teacher {
private int id;
private String name;
private int salary;
private int salaryEarned;
/**
* Creates a new Teacher object.
* @param id id for the teacher.
* @param name name of the teacher.
* @param salary salary of the teacher.
*/
public Teacher(int id, String name, int salary){
this.id=id;
this.name=name;
this.salary=salary;
this.salaryEarned=0;
}
/**
*
* @return the id of the teacher.
*/
public int getId(){
return id;
}
/**
*
* @return name of the teacher.
*/
public String getName(){
return name;
}
/**
*
* @return the salary of the teacher.
*/
public int getSalary(){
return salary;
}
/**
* set the salary.
* @param salary
*/
public void setSalary(int salary){
this.salary=salary;
}
/**
* Adds to salaryEarned.
* Removes from the total money earned by the school.
* @param salary
*/
public void receiveSalary(int salary){
salaryEarned+=salary;
School.updateTotalMoneySpent(salary);
}
@Override
public String toString() {
return "Name of the Teacher: " + name
+" Total salary earned so far $"
+ salaryEarned;
}
}
School
Let's create a School class with the following fields:
package com.java.sms;
import java.util.List;
/**
* Many teachers, many students.
* Implements teachers and student
* using an ArrayList.
*/
public class School {
private List<Teacher> teachers;
private List<Student> students;
private static int totalMoneyEarned;
private static int totalMoneySpent;
/**
* new school object is created.
* @param teachers list of teachers in the school.
* @param students list of students int the school.
*/
public School(List<Teacher> teachers, List<Student> students) {
this.teachers = teachers;
this.students = students;
totalMoneyEarned=0;
totalMoneySpent=0;
}
/**
*
* @return the list of teachers int the school.
*/
public List<Teacher> getTeachers() {
return teachers;
}
/**
* Adds a teacher to the school.
* @param teacher the teacher to be added.
*/
public void addTeacher(Teacher teacher) {
teachers.add(teacher);
}
/**
*
* @return the list of students in the school.
*/
public List<Student> getStudents() {
return students;
}
/**
* Adds a student to the school
* @param student the student to be added.
*/
public void addStudent(Student student) {
students.add(student);
}
/**
*
* @return the total money earned by the school.
*/
public int getTotalMoneyEarned() {
return totalMoneyEarned;
}
/**
* Adds the total money earned by the school.
* @param MoneyEarned money that is supposed to be added.
*/
public static void updateTotalMoneyEarned(int MoneyEarned) {
totalMoneyEarned += MoneyEarned;
}
/**
*
* @return the total money spent by the school.
*/
public int getTotalMoneySpent() {
return totalMoneySpent;
}
/**
* update the money that is spent by the school which
* is the salary given by the school to its teachers.
* @param moneySpent the money spent by school.
*/
public static void updateTotalMoneySpent(int moneySpent) {
totalMoneyEarned-=moneySpent;
}
}
Main
Let's create a Main class to test our simple School Management System project:
package com.java.sms;
import java.util.ArrayList;
import java.util.List;
public class Main {
public static void main(String[] args) {
Teacher teacher1 = new Teacher(1,"teacher1",500);
Teacher teacher2 = new Teacher(2,"teacher2",700);
Teacher teacher3 = new Teacher(3,"teacher3",600);
List<Teacher> teacherList = new ArrayList<>();
teacherList.add(teacher1);
teacherList.add(teacher2);
teacherList.add(teacher3);
Student student1 = new Student(1,"student1",4);
Student student2 = new Student(2,"student2",12);
Student student3 = new Student(3,"student3",5);
List<Student> studentList = new ArrayList<>();
studentList.add(student1);
studentList.add(student2);
studentList.add(student3);
School college1 = new School(teacherList,studentList);
Teacher teacher4 = new Teacher(6,"teacher4", 900);
college1.addTeacher(teacher4);
student1.payFees(5000);
student2.payFees(6000);
System.out.println("college1 has earned $"+ college1.getTotalMoneyEarned());
System.out.println("------Making SCHOOL PAY SALARY----");
teacher1.receiveSalary(teacher1.getSalary());
System.out.println("college1 has spent for salary to " + teacher1.getName()
+" and now has $" + college1.getTotalMoneyEarned());
teacher2.receiveSalary(teacher2.getSalary());
System.out.println("college1 has spent for salary to " + teacher2.getName()
+" and now has $" + college1.getTotalMoneyEarned());
System.out.println(student2);
teacher3.receiveSalary(teacher3.getSalary());
System.out.println(teacher3);
}
}Output:
college1 has earned $11000 ------Making SCHOOL PAY SALARY---- college1 has spent for salary to teacher1 and now has $10500 college1 has spent for salary to teacher2 and now has $9800 Student's name :student2 Total fees paid so far $6000 Name of the Teacher: teacher3 Total salary earned so far $600
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