Does anyone know what “expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS” means?

When I compile following java code it throws illegal start of type & class, interface or enum expected errors.

Inside Percolation class in following code, a WeightedQuickUnionUF data type belonging to another class is declared. WeightedQuickUnionUF class is stored in a jar file named "algs4.jar" inside current working directory.

I have checked code several times but can't find out the flaw and completely stuck.

The code is as follows:

public class Percolation{
public static Percolation(int n){
boolean[][] A=new boolean[n][n];
}
int i

I wrote a simple server in C and would like to have the same functionality calling it as other C daemons (such as calling it with ./ftpd start and closing that instance with ./ftpd stop). Obviously the problem I'm having is that I do not know how to grab the current instance of the running program. I can parse the options just fine (using getopt / optarg) but at the moment, ./my-program stop just starts a new instance vs. calling ./my-program start which starts it up fine.

The reason I want to do this is because another program will be signaling my server to stop, so a call like ./my-program stop is very simple, which can then stop the server loops and close all the op

Could anyone point me in the right direction, as when I save a small serialized hash via file upload to the database it works just fine, however when a large file comes along it errors out with;

Im running Ruby 1.9.3po and rails 3.2.3, sQlite3. Database column is TEXT type with default limit. Using serialize, :db_column, Hash to save it correctly as a hash to the db.

I can't find anything decisive on google. Could it be something to do with how the database column is configured? Any pointers would be greatly appreciated.

cheer

I'm trying to create a release script that can be deployed on multiple databases, but where the data can be merged back together at a later date. The obvious way to handle this is to set the sequence numbers for production data sufficiently high in subsequent deployments to prevent collisions.

The problem is in coming up with a release script that will accept the environment number and set the "Start With" value of the sequences appropriately. Ideally, I'd like to use something like this:

ACCEPT EnvironNum PROMPT 'Enter the Environment Number: '
--[more scripting]
CREATE SEQUENCE seq1 START WITH &EnvironNum*100000;
--[mor

Using WITH OVER or by using other method, how to start new sequence number for another group of records?

It is SQL Server 2005.

E.g. how to get following ouput (I am talking about RowNum column in expected output)?

Table:

id name

100 A

200 B

300 C

200 B

200 B

Expected ouput:

RowNum id

1 100

1 200

2 200

3 200

1 300

I have written a 3D-Stereo OpenGL program in C++. I keep track of the position objects in my display should have using timeGetTime after a timeBeginPeriod(1). When I run the program with "Start Debugging" my objects move smoothly across the display (as they should). When I run the program with "Start without debugging" the objects occationally freeze for several screen refreshes then jump to a new position. Any ideas as to what may be causing this problem and how to fix it?

Edit: It seems like the jerkiness can be resolved after a short delay when I run through "Start without debugging" if I click the mouse button. My application is a console application (I take i