Projects & Certification

Projects — put it all together

Build small console apps: Student Result Manager, Library System, Todo CLI, Bank Account simulator.

Use classes, collections, file I/O, and exception handling in each project.

Real-life example: Projects are mini internships — you practice real tasks, not just read theory.

• Student Result — OOP + ArrayList + file save
• Library — HashMap books by ID + Scanner input
• Todo CLI — List + file persistence
• Bank — encapsulation + validation + exceptions

import java.util.*;

class Student {
    String name;
    int marks;
    Student(String name, int marks) {
        this.name = name;
        this.marks = marks;
    }
}

public class ResultApp {
    public static void main(String[] args) {
        List<Student> list = new ArrayList<>();
        list.add(new Student("Asha", 91));
        list.add(new Student("Rohan", 88));
        for (Student s : list) {
            System.out.println(s.name + ": " + s.marks);
        }
    }
}

Certification — next steps

Oracle offers Java certifications (OCA/OCP). Practice with our Java MCQs after you finish the lessons.

Certifications prove basics — employers also want projects on GitHub.

Real-life example: Certificate is a driving license — proves you passed test. Projects prove you can actually drive on roads.