copying

Copying a two dimensional array - still uses references?

萝らか妹 提交于 2019-12-13 21:29:29
问题 I have got (IMHO) a strange behaviour in my code. I am currently implementing the minimax algorithm for a Tic Tac Toe game. In my "successor" method I want to determine all possible moves. Here's the code: private ArrayList<TicTacToeState[][]> successor(final TicTacToeState[][] field, TicTacToeState s) { ArrayList<TicTacToeState[][]> returnList = new ArrayList<TicTacToeState[][]>(); for (int i = 0; i < TicTacToeGame.FIELDSIZE; i++) { for (int j = 0; j < TicTacToeGame.FIELDSIZE; j++) { if

Copying files from a shared folder to a local folder in javaservlet

杀马特。学长 韩版系。学妹 提交于 2019-12-12 05:25:36
问题 Im developing a servlet, and I have to copy a file (*.doc) from a shared folder in other computer to my servlet webapp space, but I can't. The trouble is not writing on my Apache Server, instead of, Im expecting troubles copying the file from the remote folder (shared folder in a LAN). Any suggest or idea? File inFile = new File( "\\\\192.168.2.103\\CompartidaMatias\\tablaEstudios.txt"); out.println("<p> AbsolutePath --> " + inFile.getAbsolutePath() + "</p>"); out.println("<p> Path --> " +

Copying from xlsx to an specific sheet in another xlsx

流过昼夜 提交于 2019-12-12 04:34:45
问题 I need some help with python. Basically I have 2 files(for this example will be file1 and file2). File1 have several sheets inside, file2 is just one sheet. So after some work in file2 now i have the DataFrame that i need. And I need to paste this DataFrame in one specific sheet in file1. File1 A B C D E F G <data> <data> <data> <data> <formula> <formula> <formula> <data> <data> <data> <data> <formula> <formula> <formula> <data> <data> <data> <data> <formula> <formula> <formula> <data> <data>

Copying delegates

放肆的年华 提交于 2019-12-10 01:42:01
问题 I was just reading a page on events on MSDN, and I came across a snippet of example code that is puzzling me. The code in question is this: // Make a temporary copy of the event to avoid possibility of // a race condition if the last subscriber unsubscribes // immediately after the null check and before the event is raised. EventHandler<CustomEventArgs> handler = RaiseCustomEvent; I understand the intentions of the code, but I fail to see how that particular line is making a copy of anything.

SQL Server: Copying column within table

自古美人都是妖i 提交于 2019-12-09 14:05:46
问题 What is the easiest way to copy the all the values from a column in a table to another column in the same table? 回答1: With a single statement (if the columns have the same datatype) UPDATE <tablename> SET <destination column name> = <source column name> 回答2: This script will update ALL values in the field1 with the values from the field2 in the corresponding row UPDATE table SET field1 = field2 来源: https://stackoverflow.com/questions/173717/sql-server-copying-column-within-table

MySQL copy a user

若如初见. 提交于 2019-12-05 23:21:14
问题 I want to create two users on my MySQL test database, One with read-only access to tables relevant to generating reports, etc, the other with read-write access to the same tables. This is for testing a subsystem that normally connects with a read-only user but switches to a read-write user for certain tasks. I've created the read-write user with the correct privileges, and now I need a read-only version of the same user. I'd rather not create the read-only version from scratch as I had to set

Copying delegates

自古美人都是妖i 提交于 2019-12-05 01:14:41
I was just reading a page on events on MSDN, and I came across a snippet of example code that is puzzling me. The code in question is this: // Make a temporary copy of the event to avoid possibility of // a race condition if the last subscriber unsubscribes // immediately after the null check and before the event is raised. EventHandler<CustomEventArgs> handler = RaiseCustomEvent; I understand the intentions of the code, but I fail to see how that particular line is making a copy of anything. All it is doing is copying the reference ; it's not actually making a deep copy of the delegate

Copy folders from one directory to another in R

社会主义新天地 提交于 2019-12-04 22:52:18
I have two folders (say "A","B") which are in a folder (say "Input"). I want to copy "A" and "B" to another folder (say "Output"). Can I do this in R? Huang Chen Copying your current directory files to their new directories currentfiles is a list of files you want to copy newlocation is the directory you're copying to If you aren't listing your current files, you'll need to loop through you're working directory file.copy(from=currentfiles, to=newlocation, overwrite = TRUE, recursive = FALSE, copy.mode = TRUE) This is for deleting your old files file.remove(currentfiles) I am late. This is my

How to know where on the SD card the images are being stored, DCIM/Camera, DCIM/100MEDIA?

99封情书 提交于 2019-12-04 07:09:24
I have a method in my application which retrieves the last saved image in my DCIM/Camera folder and copies it to another location on the SD card. I've just tested it on another phone and found that it defaults saving to DCIM/100MEDIA . How am I able to get this path? I ended up writing some code which looped through all the folders in the DCIM folder and retrieved the path of the lastModified() folder. Richard Logwood Looks like it is manufacturer dependent. In addition to using methods described in book, it seems also allowing the user to choose/override the default you "discover" would be an

MySQL copy a user

风流意气都作罢 提交于 2019-12-04 04:38:11
I want to create two users on my MySQL test database, One with read-only access to tables relevant to generating reports, etc, the other with read-write access to the same tables. This is for testing a subsystem that normally connects with a read-only user but switches to a read-write user for certain tasks. I've created the read-write user with the correct privileges, and now I need a read-only version of the same user. I'd rather not create the read-only version from scratch as I had to set a lot of privileges, which was rather laborious. Is there a way I can create a new user based on an