import java.io.*; //import API to allow input of characters
import java.util.Vector; //import API to allow Vector functionality
 
class Details {
 
        String name = null;
        String artist = null;
        String year = null;
        String genre = null;
        String rating = null;
 
    Vector v = new Vector();        
 
        public void newcd() {
 
        BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
 
        System.out.println("CD Name: ");
 
        try { //Reads keyboard input and acts accordingly
            name = stdin.readLine();
        }catch (IOException ex) {
            System.out.println("Problem reading from the keyboard"); }
 
        System.out.println("Artist: ");
 
        try { //Reads keyboard input and acts accordingly
            artist = stdin.readLine();
        }catch (IOException ex) {
            System.out.println("Problem reading from the keyboard"); }
 
        System.out.println("Year of album: ");
 
        try { //Reads keyboard input and acts accordingly
            year = stdin.readLine();
        }catch (IOException ex) {
            System.out.println("Problem reading from the keyboard"); }
 
        System.out.println("Genre: ");
 
        try { //Reads keyboard input and acts accordingly
            genre = stdin.readLine();
        }catch (IOException ex) {
            System.out.println("Problem reading from the keyboard"); }
 
        System.out.println("Rating: ");
 
        try { //Reads keyboard input and acts accordingly
            rating = stdin.readLine();
        }catch (IOException ex) {
            System.out.println("Problem reading from the keyboard"); }
 
        Details disc = new Details ();
        disc.name = name;
        disc.artist = artist;
        disc.year = year;
        disc.genre = genre;
        disc.rating = rating;
 
        v.add(disc);
    }
 
}
public class CDSystem { //main class
 
    public static void main (String [] args) { //main method containing menu system
 
        String input = null; //initialising input string
        int iInput;
        int ixInput;
 
        BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
 
        System.out.println("Welcome to your CD Collection"); //commands to display menu on screen
        System.out.println("Select an option from the menu:");
        System.out.println("1: Add a new CD");
        System.out.println("2: Display CDs by artist");
        System.out.println("3: Display CDs by genre");
        System.out.println("4: Display all albums ascending by year");
        System.out.println("5: Display all albums descending by rating");
        System.out.println("Press any other key to exit");
 
        try { //Reads keyboard input and acts accordingly
            input = stdin.readLine();
        }catch (IOException ex) {
            System.out.println("Problem reading from the keyboard");
 
        iInput = Integer.valueOf(input); // convert String to Integer
        }
        if (iInput == 1) {
        newcd();
        }    
        if (iInput == 2) {
        artistdisplay();
        }
        if (iInput == 3) {
        genredisplay();
        }
        if (iInput == 4) {
        yeardisplay();
        }
        if (iInput == 5) {
        ratingdisplay();
        }
        else {
        System.out.println("Thank you for using CDSystem");
    }
    }
}

SecondClass secondClass = new SecondClass();
if (iInput == 1) {
        secondClass.newcd();
        }

if (iInput == 1) {
        newcd();
        }    
        if (iInput == 2) {
        artistdisplay();
        }
        if (iInput == 3) {
        genredisplay();
        }
        if (iInput == 4) {
        yeardisplay();
        }
        if (iInput == 5) {
        ratingdisplay();
        }
        else {

input = stdin.readLine();

        try { //Reads keyboard input and acts accordingly
            input = stdin.readLine();
        }catch (IOException ex) {
            System.out.println("Problem reading from the keyboard");
 
        iInput = Integer.valueOf(input); // convert String to Integer
        }