Trouble inserting data in a SQLite databae

public static void main(String[] args) {
    try {
        Class.forName("org.sqlite.JDBC");  
        connection = DriverManager.getConnection("jdbc:sqlite:C:\\users\\tim\\airline\\flightschedule.db");  
        PreparedStatement statement = connection.prepareStatement("INSERT INTO flights (flightID,departure,arrival)VALUES(?,?,?)");
            statement.setInt(1,5);
            statement.setString(2,"David");
            statement.setString(3,"Ortiz");
            statement.executeUpdate();

    } catch (Exception e) {  
        e.printStackTrace();  
    } finally {  
        try {  
            resultSet.close();  
            statement.close();  
   开发者_Python百科         connection.close();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
    }

}

You should call a different method.

First things first though:

Bad code (wide open to SQL Injection attack):

        statement = connection.createStatement();  
        resultSet = statement.executeQuery(
            "INSERT INTO flights 
               ('flightID','departure','arrival')
               VALUES('"+flightID+"','"+departure+"','"+arrival+"')");  

Good code:

        PreparedStatement statement = connection.prepareStatement(
            "INSERT INTO flights (flightID,departure,arrival)
               VALUES(?,?,?)");
        statement.setString(1,flightID);
        statement.setString(2,departure);
        statement.setString(3,arrival);
        statement.executeUpdate();

        // thanks to @lobster1234 for reminder!
        connection.commit();

Have you noticed I do executeUpdate() instead of executeQuery()? Because this is the cause of your trouble.

P.S. I also noticed that you pass flightID into the method as int, but insert it into database as a string. Not a good practice usually. Stick to one datatype. If ID is really a number, make it a number in the database and then call setInt(1,flightID); alternatively, pass it around as String too.

Try calling connection.commit() after executeUpdate(). You can also get the value returned by executeUpdate() and make sure you get 1 and not 0, as this call returns the number of rows affected by the statement.