Java Note Scale Counting

package music;

import javax.swing.JOptionPane;

public class musicc {
    public static void main(String[] args) throws Exception {
        int noteid;
        int notechange;
        boolean direction; //true = up, false = down
        int newnoteid;
        boolean debug = true; //PRINTS DEBUG INFO
        //GETS USER INPUT!
        noteid = musicc.getNoteId(); //gets noteid
        if (debug == true) {
            System.out.println("Note id: " + noteid); //debug
        }
        notechange = musicc.getNoteChange(); //gets note change
        if (debug == true) {
            System.out.println("Note change: " + notechange); //debug
        }
        direction = getDirection();
        if (debug == true) {
            System.out.println("Note direction: " + direction); //debug
        }
        //CALCULATIONS
        System.out.println("Starting Calculations...");
        notechange = notechange - 1;
        if (direction == false) {
            notechange = notechange * -1;
        }
        if (debug == true) {
            System.out.println("Note change/direction togther: " + notechange); //debug
        }
        newnoteid = noteid + notechange;
        if (debug == true) {
            System.out.println("Raw newnoteid: " + newnoteid); //debug
        }
        newnoteid = newnoteid % 7;
        if (debug == true) {
            System.out.println("Note id pre NF: " + newnoteid); //NF = negative fix //debug
        }
        while (newnoteid < 0) {
            newnoteid = newnoteid + 7; //brings value above negative by the octave
        }
        if (debug == true) {
            System.out.println("Note id post NF: " + newnoteid); //debug
        }
        String result = getNewNote(newnoteid);
        if (debug == true) {
            System.out.println("result: " + result); //debug
        }
        //RESULTS
        JOptionPane.showMessageDialog(null,"The note you landed on is " + result,"Results", JOptionPane.INFORMATION_MESSAGE);
    }

    public static int getNoteId() {
        String note;
        //asks for note
        Object[] possibilities = {"A", "B", "C", "D", "E", "F", "G"};
        note = (String)JOptionPane.showInputDialog(null,"What note do you want to start on?","Music Scale",JOptionPane.PLAIN_MESSAGE,null,possibilities,"A");
        while (note == null) { //makes sure if cancel is pressed it tries again
            JOptionPane.showMessageDialog(null,"Enter a note!", "Error!", JOptionPane.ERROR_MESSAGE);
            note = (String)JOptionPane.showInputDialog(null,"What note do you want to start on?","Music Scale",JOptionPane.PLAIN_MESSAGE,null,possibilities,"A");
        }
        switch(note) { //note to number
        case "A":return 1;
        case "B":return 2;
        case "C":return 3;
        case "D":return 4;
        case "E":return 5;
        case "F":return 6;
        case "G":return 7;
        }
        return 0;
    }
    public static int getNoteChange() {
        String change;
        int changeInt = 0; //declare int
        boolean ischangeint = false;
        change = (String)JOptionPane.showInputDialog(null,"How much do you want to go up or down?","Music Scale",JOptionPane.PLAIN_MESSAGE,null,null,"1"); //inital input
        while (ischangeint == false) {
            try {
                changeInt = Integer.parseInt(change); //converts string answer to integer
                //goes to catch if it's not
                if (changeInt >= 1) { //checks if its greater than or equal to 1
                    ischangeint = true; //if all conditions satisfied, change ischangeint to true, breaking the while loop
                } else { //less than 1
                    JOptionPane.showMessageDialog(null,"That is not a positive number!", "Error!", JOptionPane.ERROR_MESSAGE); //error
                    change = (String)JOptionPane.showInputDialog(null,"How much do you want to go up or down?","Music Scale",JOptionPane.PLAIN_MESSAGE,null,null,"1"); //asks again
                }
            } catch (NumberFormatException e) { //goes to this instead of error if not integer
                JOptionPane.showMessageDialog(null,"That is not a valid number!", "Error!", JOptionPane.ERROR_MESSAGE); //error
                change = (String)JOptionPane.showInputDialog(null,"How much do you want to go up or down?","Music Scale",JOptionPane.PLAIN_MESSAGE,null,null,"1"); //asks again
            }

        }
        return changeInt; //after checking if it is a valid int, it returns it
    }
    public static boolean getDirection() {
        String directionS;
        Object[] possibilities = {"Up","Down"};
        directionS = (String)JOptionPane.showInputDialog(null,"Which direction do you want to count in?","Music Scale",JOptionPane.PLAIN_MESSAGE,null,possibilities,"Up");
        while (directionS == null) { //makes sure if cancel is pressed it tries again
            JOptionPane.showMessageDialog(null,"Enter a direction!", "Error!", JOptionPane.ERROR_MESSAGE);
            directionS = (String)JOptionPane.showInputDialog(null,"Which direction do you want to count in?","Music Scale",JOptionPane.PLAIN_MESSAGE,null,possibilities,"Up");
        }
        if (directionS == "Up") {
            return true;
        } else {
            return false;
        }

    }
    public static String getNewNote(int id) {
        switch(id) { //note to number
        case 1:return "A";
        case 2:return "B";
        case 3:return "C";
        case 4:return "D";
        case 5:return "E";
        case 6:return "F";
        case 0:return "G";
        }
        return "error";
    }
}
//Created by Hexbugman213