io

问题 Suppose we have following structure: struct Something { int i; }; If I want to write in a file any data of this type(dynamically allocated), I do this: struct Something *object = malloc(sizeof(struct Something)); object->i = 0; // set member some value FILE *file = fopen("output_file", "wb"); fwrite(object, sizeof(struct Something), 1 file); fclose(file); Now, my questions: How we do this with a structure what contains pointers? I tested using same method, it worked fine, data could been read

问题 I am trying to implement a class from HighestScoreFile.java and when I compile, I get this error : ...MemoryGame.java:211: error: unreported exception IOException; must be caught or declared to be thrown HighestScoreFile.HighestScoreFile(input, hours, minutes, seconds, click); ^ 1 error Before I implement this HighestScoreFile.java , I have tested with a main class using public static void main(String[] args) throws IOException { HighestScoreFile("abcdefg", 12, 13, 14, 30); } The

问题 I am trying to implement a class from HighestScoreFile.java and when I compile, I get this error : ...MemoryGame.java:211: error: unreported exception IOException; must be caught or declared to be thrown HighestScoreFile.HighestScoreFile(input, hours, minutes, seconds, click); ^ 1 error Before I implement this HighestScoreFile.java , I have tested with a main class using public static void main(String[] args) throws IOException { HighestScoreFile("abcdefg", 12, 13, 14, 30); } The

问题 Lots of people want to switch off buffering on their file descriptors. I want the reverse: I deliberately want to configure a file descriptor to buffer, say, 1K of data before writing to disk. The reason is that I'm writing a unit test for a "flush" function of a C++ class. To test that it's working I want to write some data, check the size of the file on disk, then flush, then check that the size has grown. But in practice, by the time I do the first file size check the data has already been

问题 I have to upload a binary image file to the server using multi-part, I open the connection to the https url and write diretly to to the outputstream. I have tried the SSLSocket, apache http client, but in all ways I get the error message, java.io.IOException: Error writing to server. I have to write post params with the multi-part binary file. The code is given below, where am I failing to see the mistake in this code below? And, I have given the sample data to write the data to the

问题 I am trying out a simple program for reading the HTML content from a given URL. The URL I am trying in this case doesn't require any cookie/username/password, but still I am getting a io.IOException: Server returned HTTP response code: 403 error. Can anyone tell me what am I doing wrong here? (I know there are similar question in SO, but they didn't help): import java.net.*; import java.io.*; import java.net.MalformedURLException; import java.io.IOException; public class urlcont { public

问题 Are you able to access your file-system, using Jetpack, and do operations such as creating or reading files or saving images? 回答1: The Add-on SDK 1.0b5 (the most recent version at this moment) has a file module for this purpose. Note that it's not a high-level module, meaning it can change incompatibly in future Add-on SDK versions. [the original answer from 2010/01] No, there's no jetpack-specific APIs for this yet, note the red link on MDC and the lack of a "JEP" about this. You're not

问题 i am facing a strange issue , i have a .bat file which contains a code for renaming a file , when i open the .bat file manually it does what it is written on it which is renaming a file , but when i try to open it programtically from C# , it doesnt do anything , it jsut open the file and do not compile what it is written into . i typed that code : Process.Start(@"file.bat"); I also knew if you typed the path into cmd and pressed enter it will open the file and compile it , so i wrote that :

问题 i am facing a strange issue , i have a .bat file which contains a code for renaming a file , when i open the .bat file manually it does what it is written on it which is renaming a file , but when i try to open it programtically from C# , it doesnt do anything , it jsut open the file and do not compile what it is written into . i typed that code : Process.Start(@"file.bat"); I also knew if you typed the path into cmd and pressed enter it will open the file and compile it , so i wrote that :