Java using getters and setters to manage a list of student

PRE REQUISITES:

[1] Data Structure (thirdygayares.com)

[2] OOP Concepts (Using Getters and Setters) (thirdygayares.com)

simple implementation in Java using getters and setters to manage a list of student information based on this Data Structure (thirdygayares.com). We will create a Student class to encapsulate the data, and we will use an ArrayList to store multiple students.

public class Student {
    private int id;
    private String name;
    private String section;
    private int age;
    private String email;

    // Getter and Setter for id
    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    // Getter and Setter for name
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    // Getter and Setter for section
    public String getSection() {
        return section;
    }

    public void setSection(String section) {
        this.section = section;
    }

    // Getter and Setter for age
    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    // Getter and Setter for email
    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    // Display Student Information
    public String toString() {
        return "ID: " + id + ", Name: " + name + ", Section: " + section + ", Age: " + age + ", Email: " + email;
    }
}

import java.util.ArrayList;
import java.util.List;

public class Main {
    public static void main(String[] args) {

        // List to store Student objects
        List<Student> students = new ArrayList<>();

        // Creating Student objects and setting values using setters
        Student student1 = new Student();
        student1.setId(1);
        student1.setName("Juan Carlos");
        student1.setSection("BSIT-4B");
        student1.setAge(22);
        student1.setEmail("[email protected]");

        Student student2 = new Student();
        student2.setId(2);
        student2.setName("Jose Rizal");
        student2.setSection("BSIT-2A");
        student2.setAge(21);
        student2.setEmail("[email protected]");

        students.add(student1);
        students.add(student2);

        // Display all students' information using getters
        for (Student student : students) {
            System.out.println(student.toString());
        }
    }
}

• Student Class: We define private fields for id, name, section, age, and email. For each field, we have a corresponding getter and setter method to manage the data.

• Main Class: We create several Student objects, set their data using the setter methods, and store them in an ArrayList. Finally, we loop through the list and print each student's information using the toString() method

Output:

ID: 1, Name: Juan Carlos, Section: BSIT-4B, Age: 22, Email: juan@gmail.com
ID: 2, Name: Jose Rizal, Section: BSIT-2A, Age: 21, Email: jose@gmail.com