public void displayUnderTime(Song allSongs[]) {
    System.out.println("Please enter the time in which you want songs with durations to be displayed under:");
    int underTime = console.nextInt();
    for (int i = 0;i < database.allSongs.length;i++) {
        if (database.allSongs[i] != null) {
            if (database.allSongs[i].duration < underTime) {
               database.bubbleSort(allSongs);
            }
        }


    }
     for (int i = 0; i < allSongs.length;i++) {
            if (allSongs[i] != null) {
                System.out.print(allSongs[i].name + " by ");
                System.out.println(allSongs[i].artist);
            }
        }
}