Java: Create Tables in SQLite beautifully

SQLiteHelper.java

public class SQLiteHelper extends SQLiteOpenHelper {
    private static final String BOOK_TABLE = "books";
    private static final HashMap<String, String> BOOK_FIELDS = new HashMap<String, String>() {{
        put("title",     "TEXT");
        put("author",    "TEXT");
        put("sales",  "INTEGER");                          // Neatly write fields and their types
    }};  

    // ...

    @Override
    public void onCreate(SQLiteDatabase db) {
        createTable(db, BOOK_TABLE, BOOK_FIELDS);          // Create the table in a single, beautiful line.
    }

    // This function does all the dirty work
    static public void createTable(SQLiteDatabase db, String tableName, HashMap<String, String> fields) {
        String command = "CREATE TABLE " + tableName + " ( id INTEGER PRIMARY KEY AUTOINCREMENT";

        for (Map.Entry<String, String> entry : fields.entrySet())
            command = command + ", " + entry.getKey() + " " + entry.getValue();

        command = command + " )";
        db.execSQL(command);
    }
    
    // ...
}