edx scala

Premise:1. Install Ubuntu2. use vagrant+virtualbox to build the EdX Developer Stackon ubuntn and to successfully access3. Pycharm-3.4.1 is installed and activated successfully under Ubuntu4. future development in Ubuntu environmentPreparatory work:1. convert path to native /devstack/2. turn on vagrantand enter the command:Vagrantup3. using ssh connection vagrant, enter the command:Vagrantssh4. give the edxapp account A password, enter the command:SU

Open Online education platform EdX opened in June this year, when the Google group method "clean install on Ubuntu Server 12.04" in a brand new VPS installed A, although the final installation was successful, but also spent some trouble, Finally, the overall impression of the edx system is somewhat bloated, dependent on too much, not too lightweight. A few days ago a friend of Peking University in the insta

After practicing for several days edx Devstack, found himself e is still so poor, if and I like, continue to look down, otherwise you can gently drift over ~1. Run the edx devstackCd/devstackVagrant upVagrant SSH(The above should be more familiar with:)This article refer to Https://github.com/edx/edx-platform/wiki/Inte

Label: Ar c working time r as Rom net 5CATEGORY first, 1. skill category; 2. improvement category; 3. Interest category.I have completed the first six courses of Andrew Ng ml, UW computer network, and dataset cience on Coursera.In the future, the service will be guaranteed to be 25 hours a week, with an average of 2.5-3 hours per working day and 11 hours on weekends. In this way, three courses can be conducted at the same time in less than ten weeks, it also needs to be arranged according to the

Note: During addition calculation, it is actually performed on a 32-bit accumulators, and pay attention to the conversion between types. Data truncation problems generally include ax, BX, CX, Dx. Ax: cumulative latches, Bx: Base latches, CX: Count latches, DX: Data latches Index latches: Si and Di Si: source index storage, DI: Destination index Storage Stack and base latches: SP and BP SP: stacked indicator latches, BP: Base Indicator latches Eax, ECx,

Functions of EAX, ECX, EDX, and EBX registers, ecxebx General registers: AX, BX, CX, DXAX: cumulative latches, BX: Base latches, CX: Count latches, DX: Data latchesIndex latches: SI and DISI: source index storage, DI: Destination index StorageStack and base latches: SP and BPSP: stacked indicator latches, BP: Base Indicator latchesEAX, ECX, EDX, and EBX: extensions of ax, bx, cx, and dx, each of which is 32

Recently, due to work, an open EdX instance was installed in Ubuntu virtual machine on Azure, and the installation process encountered a lot of problems, and learned different knowledge in the process of finding the answer from the Internet.Create an authentication certificate file for SSHWhen connecting to an Ubuntu virtual machine using the Putty (http://www.putty.org/) tool, two options are available for authentication: username + password; Another

;Sb.append (Hexdigits[b >> 4]);Sb.append (Hexdigits[b 15]);Sb.append (");}return sb.tostring ();}private static class Savingtrustmanager implements X509trustmanager {Private Final X509trustmanager TM;Private x509certificate[] chain;Savingtrustmanager (X509trustmanager tm) {This.tm = TM;}Public x509certificate[] Getacceptedissuers () {throw new Unsupportedoperationexception ();}public void checkclienttrusted (x509certificate[] chain, String authtype)Throws Certificateexception {throw new Unsuppo

Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example:Add eax,-2;// It can be considered that a value such as-2 is added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. EaxIt is an accumulator, which is t

From: http://hi.baidu.com/helloembed/blog/item/2fd65453843120511038c21a.html Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "experti

Organize from the Internet Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. Eax is the ac

First, Scala overviewcan expand? Object Oriented? function-type programming compatible with Java Interop Syntax concise ? code line short ? ? abstract control statically typed can examine secure refactoring support concurrency control Customize other control structures Ii. installation of ScalaIdeEclipse (native support, use more complex)IntelliJ (expensive)NetBeans

Tags: nbsp idea Big Data development GTK Target 1.3 website startup technology sharingStep Two: Install IntelliJ idea　If 3 nodes such as Master, Slave1, Slave2, it is recommended to install it on the master nodeTo Https://www.jetbrains.com/idea download the corresponding version of the file,Because, I usually install the JDK myself, without the openjdk of CentOS, so I download the version as followsThen unzip it.The following is the directory where IntelliJ idea was installedThen proceed to the

Scala tutorial, scala Programming The following is a complete scala getting started tutorial I have collected from the Internet. I have followed other programming basics to get started. Compared with other languages such as Java, Scala is a complex language. It is a unity of object-oriented and function-oriented. It is

Scala supports scripts 1) create a file hello. Scala under/opt/Scala-script and edit the file as follows: $ Hello, this is the first Scala script 2) run the script 　　　　 The command line parameters of the scala script are saved in the sc