Java Program on School Management Application

Below is a simple Java program for a School Management Application. This program allows users to perform basic school management operations like adding students, displaying student information, and calculating average grades.

 

import java.util.Scanner;

class Student {
    String name;
    int age;
    double[] grades;

    Student(String name, int age, double[] grades) {
        this.name = name;
        this.age = age;
        this.grades = grades;
    }

    double getAverageGrade() {
        double total = 0;
        for (double grade : grades) {
            total += grade;
        }
        return total / grades.length;
    }

    void displayInfo() {
        System.out.println("Name: " + name);
        System.out.println("Age: " + age);
        System.out.print("Grades: ");
        for (double grade : grades) {
            System.out.print(grade + " ");
        }
        System.out.println("\nAverage Grade: " + getAverageGrade());
        System.out.println();
    }
}

public class SchoolManagementApplication {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int capacity = 5; // Maximum number of students
        Student[] students = new Student[capacity];
        int count = 0; // Current number of students in the system

        while (true) {
            System.out.println("School Management Application");
            System.out.println("1. Add Student");
            System.out.println("2. Display All Students");
            System.out.println("3. Exit");
            System.out.print("Enter your choice: ");
            int choice = sc.nextInt();

            switch (choice) {
                case 1:
                    if (count == capacity) {
                        System.out.println("Student database is full. Cannot add more students.");
                    } else {
                        sc.nextLine(); // Consume newline left by previous nextInt() call
                        System.out.print("Enter student name: ");
                        String name = sc.nextLine();

                        System.out.print("Enter student age: ");
                        int age = sc.nextInt();

                        System.out.print("Enter number of grades: ");
                        int numGrades = sc.nextInt();
                        double[] grades = new double[numGrades];

                        System.out.println("Enter grades (separated by spaces): ");
                        for (int i = 0; i < numGrades; i++) {
                            grades[i] = sc.nextDouble();
                        }

                        students[count] = new Student(name, age, grades);
                        count++;
                    }
                    break;
                case 2:
                    if (count == 0) {
                        System.out.println("No students in the system.");
                    } else {
                        System.out.println("Student Information:");
                        for (int i = 0; i < count; i++) {
                            students[i].displayInfo();
                        }
                    }
                    break;
                case 3:
                    System.out.println("Exiting School Management Application. Goodbye!");
                    sc.close();
                    System.exit(0);
                    break;
                default:
                    System.out.println("Invalid choice. Please try again.");
                    break;
            }
        }
    }
}
 

Note that this is a basic school management application with limited functionality. In a real-world scenario, a more robust and extensive application would be required to handle various operations and manage student information effectively.