doodle picture frame

The last one is missing. Add:Concurrenthashmap:is thread-safe(based onLockimplemented, the lock is not the whole object when synchronizing, but adds thesynchronizedis to lock the whole object .), the realization ofMapinterface, he was inHashMapon the basis of the data are divided into a number of smallSegment (segmented lock, he inherited theReentrantlock), the default -, each time the operation issegmentlock, avoid the chance of multithreading, improve concurrency efficiency, from his source ca

upload2. [Field ' file '] for processing files [upload.php] on the website3. [FileName] to save on the server4. Uploading the file [MimeType]*/fields and types of server upload files[formData appendpartwithfiledata:d ata name:@ "XXXXX"fileName: FileName mimeType:@ "Image/jpg/file"];}]; //3. Operation Packaging of Urlconnetion afhttprequestoperation *op = [[afhttprequestoperationalloc] Initwithrequest: request];[Opsetcompletionblockwithsuccess: ^ (afhttprequestoperation *operation,ID Responseob

Finally successfully implemented how to set the background picture for the JFrame window. Here is an example, please learn from Swring's friends.Import java.awt.*; Import javax.swing.*; Import Java.awt.Container; public class Framebg {public Framebg () {} public static void Main (string[] args) {JFrame frame=new JFrame ("Background map Settings"); fr Ame.setdefaultcloseoperation (Jframe.exit_on_close); Imag