What's wrong with my code that it keeps giving me this error?

java.sql.Connection connection=null;

String connectionURL = ";

String Driver="come.mysql.jdbc.Driver";

String username=";

String password="";

String newMovieName = request.getParameter("newMovieName");

String NewMainActor = request.getParameter("NewMainActor");

String NewMainActress = request.getParameter("NewMainActress");

String NewRating = request.getParameter("NewRating");

String check = request.getParameter("check");

Statement movieInsert = null;
movieInsert = connection.createStatement();

try{
Class.forName("com.mysql.jdbc.Driver").newInstance();

connection = DriverManager.getConnection(connectionURL, username, password);

if(connection!=null)
{
out.println("Connected!");
}
else
{
out.println("Could Not Connect!");
}
}
catch(Exception e)
{
e.printStackTrace();
}



try{
if(check.equals("add")){
movieInsert.executeUpdate("INSERT INTO MovieTitles (MovieTitle, MainActor, MainActress, Rating) values('"+newMovieName+"', '"+NewMainActor+"' , '"+NewMainActress+"' , '"+NewRating+"' ");

} else if(check.equals("delete")){
movieInsert.executeUpdate("DELETE FROM MovieTitles WHERE MovieTitle = '"+newMovieName+"'");

}


}
catch (Exception e){
e.printStackTrace();
}

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That is my full code, I was looking at that but there is no line 79 in my form. Any other ideas as to what could be throwing the error? I ommitted the connection URL, name and pass on purpose btw.