redi-student-exercise

Redi School - Java Intermediate - OOP Class & Objects - Converting a non-OOP Java code to OOP.

Exercise

Write the following program in OOP.

Hint: You should create a class and use it to group the information about each student and use them to introduce() each student.

import java.util.ArrayList;
public class Main {
    public static void main(String[] args) {

        String studentName1 = "Bob";
        String studentName2 = "Alice";
        String studentName3 = "John";
        String studentName4 = "Jane";

        int age1 = 36;
        int age2 = 25;
        int age3 = 19;
        int age4 = 46;

        boolean student1Single = false;
        boolean student2Single = true;
        boolean student3Single = true;
        boolean student4Single = false;

        String student1City = "Berlin";
        String student2City = "Moscow";
        String student3City = "San Fransisco";
        String student4City = "Rio";

        ArrayList<String> student1Friends = new ArrayList<>();
        ArrayList<String> student2Friends = new ArrayList<>();
        ArrayList<String> student3Friends = new ArrayList<>();
        ArrayList<String> student4Friends = new ArrayList<>();

        student1Friends.add("Alice");
        student1Friends.add("Jane");

        student2Friends.add("Bob");
        student2Friends.add("Jane");

        student3Friends.add("Jane");

        student4Friends.add("John");
        student4Friends.add("Alice");
        student4Friends.add("Bob");

        // introduce yourself (Student 1)
        System.out.println("My name is " + studentName1);
        System.out.println("I'm " + age1 + " years old");
        if (student1Single) {
            System.out.println("I'm single");
        } else {
            System.out.println("I'm in a relationship ^_^ ");
        }
        System.out.println("My friends are:");
        student1Friends.forEach(System.out::println);

        // introduce yourself (Student 2)
        System.out.println("My name is " + studentName2);
        System.out.println("I'm " + age2 + " years old");
        if (student2Single) {
            System.out.println("I'm single");
        } else {
            System.out.println("I'm in a relationship ^_^ ");
        }
        System.out.println("My friends are:");
        student2Friends.forEach(System.out::println);

        // introduce yourself (Student 3)
        System.out.println("My name is " + studentName3);
        System.out.println("I'm " + age3 + " years old");
        if (student3Single) {
            System.out.println("I'm single");
        } else {
            System.out.println("I'm in a relationship ^_^ ");
        }
        System.out.println("My friends are:");
        student3Friends.forEach(System.out::println);

        // introduce yourself (Student 4)
        System.out.println("My name is " + studentName4);
        System.out.println("I'm " + age4 + " years old");
        if (student4Single) {
            System.out.println("I'm single");
        } else {
            System.out.println("I'm in a relationship ^_^ ");
        }
        System.out.println("My friends are:");
        student4Friends.forEach(System.out::println);
    }
}

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The solution is stored in this Github repository. You could try to solve the exercise before checking it out.

Please note that there is no single correct solution for this exercise; I've just chosen a simple one and there is for sure other valid / better solutions.