anshupitlia

class LikeButton {
    public void onClick() {
        System.out.println("Like the post");
    }
}

anshupitlia

public class Main {
    public static void main(String[] args) {
        LikeButton likeButton = new LikeButton();
        likeButton.onClick(); //Like the post
    }
}

anshupitlia

public class LikeButton {
    private Reactions selectedReaction;

    public void setSelectedReaction(Reactions selectedReaction) {
        this.selectedReaction = selectedReaction;
    }

    LikeButton() {
        selectedReaction = Reactions.LIKE;
    }

anshupitlia

public class LikeButton {
...
    private Reactions hoveredReaction;
    public void setHoveredReaction(Reactions hoveredReaction) {
        this.hoveredReaction = hoveredReaction;
    }

...
    public void onHover() {
        if (hoveredReaction == Reactions.LIKE) {

anshupitlia

public interface Reaction {
     void click();
     void hover();
}
public class Haha implements Reaction {
    public void onClick() {
            System.out.println("Show Haha emoji");
    }
    public void onHover() {
            System.out.println("Haha");

anshupitlia

public class ClapButton {
    private int clapCount;
    void onClick() {
        if (clapCount < 50) {
            clapCount += 1; //shorthand notation for adding 1 clap
            System.out.println("You clapped!");
        }
       else {
            System.out.println("no impact");
        }

anshupitlia

public interface ClapInterface {
     void onClick();
}
public class Below50 implements ClapInterface {
    @Override
    public void onClick() {
        System.out.println("You clapped!");
    }
}
public class Above50 implements ClapInterface {