optiplex 520

]) // only add to the queue if it is a new ctionQ. unshift (C );Return; // Save the turn in the queue and exit Method}// Space or another key other than an arrow key has been pressedX = 32*8 + 32*520; // snake start pos (left and right side of + can be viewed as X and Y coordQ = []; // a queue to store key presses (so that X number of key presses during one frame are spread over X number of frames)M = []; // create an array to store food POs and Snake

1. Introduction of Spark Package: spark-assembly-1.4.0-hadoop2.6.0, in the Lib directory of SparkFile-->project structure2. Create a Scala project with idea and create a new WordCount objectThe 3.WordCount code is as follows:Import Org.apache.spark.SparkConfimport Org.apache.spark.SparkContextimport org.apache.spark.sparkcontext._ ObjectWordCount {def main (args:array[string]) {if(Args.length 1) {System.err.println ("Usage: ") System.exit (1)} Val conf=Newsparkconf () Val SC=Newsparkcontext (Con

Built on top of the hadoop2.6.01. Download spark-1.4.0-bin-hadoop2.6.tgz on the website2. Unzip to the folder you want to put, tar zxvf spark-1.4.0-bin-hadoop2.6.tgz3. Configure profilesudo gedit/etc/profileAdd the path configuration below the file, save the exit, and use Source/etc/profile to make the environment effectiveExport scala_home=/home/jiahong/spark-1.4. 0-bin-hadoop2. 6 export PATH= $SPARK _home/bin: $PATH4. Start Spark[Email protected]7010: ~$ CD spark-1.4.0-bin-hadoop2.6/[email pro

understanding of CDB, first popularize some knowledge in the CDB database and the bootstarp$ table.bootstarp$ tables are present in each PDB and can be proved by bbed--View PDB related information sql> show PDBs; con_id con_name OPEN MODE RESTRICTED------------------------------------------------------------ 2 pdb$seed READ only NO 3 PDB1 mounted 4 PDB2 READ WRITE NO 5 ora11g mountedsql> Select Con_id,header_file,h Eader_block from cdb_segments where segmen

1, the basic configuration of the computer as follows.My Computer Dale OptiPlex 9020 Mini TowerOperating system Windows 7 Professional Edition 64-bit SP1Ubuntu 14.042. The process of loading the system is no longer to repeat.can refer to http://blog.csdn.net/zimosangtian/article/details/418529053, open Ubuntu, because bloggers in school use campus network, so use DSL to establish dial-up connection.After entering your account password. Prompt cannot c

[Linux] application of reverse quotation marks (') in shellThe quotation mark (') is located at the top of the Tab key of the keyboard and the left side of the key 1. Note the difference between it and the single quotation mark (') on the left side of the Enter key. The reverse quotation mark (') is used to replace commands in Linux. Command replacement means that shell can insert the standard output of a command to any location in a command line. For example: Cl @ cl-

, 7798032 free, 28136 buffersKiB swap:0 Total, 0 used, 0 free, 251708 cachedPID USER PR NI virt RES SHR S%cpu%mem time+ COMMAND8400 Root 0 7172 612 520 R 101.7 0.0 0:03.10 md5sum 8401 Root 0 7172 612 520 R 101.7 0.0 0 : 03.10 md5sum 8399 Root 0 7172 616 520 r 98.4 0.0 0:03.06 md5sum 8402 Root 0 7172 612 520 R 98.4 0.0

A1. Common data types: integer, Float, Boolean, complex type, etc.2 integer: an integer, similar to the Java BigInteger type, with unlimited length (limited to the total amount of virtual memory). Can be calculated in large numbers.3 floating point: that is, decimal, (the only way for Python to differentiate between integral and floating point types is decimal.) Commonly used e notation (i.e. scientific notation, which represents particularly large and particularly small numbers)4 Boolean type:

. actionservlet. Process (actionservlet. Java: 1482) At org. Apache. Struts. Action. actionservlet. doget (actionservlet. Java: 507) At javax. servlet. http. httpservlet. Service (httpservlet. Java: 689) At javax. servlet. http. httpservlet. Service (httpservlet. Java: 802) At org. Apache. Catalina. Core. applicationfilterchain. internaldofilter (applicationfilterchain. Java: 237) At org. Apache. Catalina. Core. applicationfilterchain. dofilter (applicationfilterchain. Java: 157) At org. Apache.

. standardvalvecontext. invokenext (standardvalvecontext. Java: 104)At org. Apache. Catalina. Core. standardpipeline. Invoke (standardpipeline. Java: 520)At org. Apache. Catalina. Core. standardcontextvalve. invokeinternal (standardcontextvalve. Java: 198)At org. Apache. Catalina. Core. standardcontextvalve. Invoke (standardcontextvalve. Java: 152)At org. Apache. Catalina. Core. standardvalvecontext. invokenext (standardvalvecontext. Java: 104)At org.

(!! Indicates that the password is empty, $6$ is sha-512 encrypted, $1$ is MD5 encrypted, $2$ represents Blowfish encryption, $5$ is sha-256 encrypted, * Indicates the user is locked out)Third paragraph: the date the password was last changed, indicating the time of the password change from January 1, 1970The fourth paragraph: How many days to change the password, 0 for unlimited time.The fifth paragraph: 99999 means that the password never expires.Sixth paragraph: 7 How many days to prompt for

verbose output, but scanning is slow."command" nc-nvv-w2-z IP port-port "for example" nc-nvv-w2-z 96.44.174.9 80-1024 "explains" to sweep the port segment of an ip, the connection time-out is 2 seconds. Instance:Summary: the use of NC scanning speed really do not compliment, and for the scan host survival, port, or to more professional nmap to carry out, use the best is the hard truth, here all when popular science.2, Listening port, connection port, turn to the terminal common COMMANDS."comman

Experiment on a PC running FreeBSD and Junos, topology as above: Virtual IP (VIP) addresses = 10.0.5.253 and 10.0.6.253 R1 is Master's VLAN 520 and R2 is back R2 is Master's VLAN 530 and R1 is back MD5 authentication is enabled. For VLAN 520, the key is ' vrrp520 '. For VLAN 530, the key is "vrrp530" My virtual router configuration, track first Logical-systems {r1 {interfaces {fxp1 {unit {Vlan-id 13;

[Linux] shell, the application of anti-quotation marks ('), linuxshellThe quotation mark (') is located at the top of the Tab key of the keyboard and the left side of the key 1. Note the difference between it and the single quotation mark (') on the left side of the Enter key. The reverse quotation mark (') is used to replace commands in Linux. Command replacement means that shell can insert the standard output of a command to any location in a command line. For example: Cl @ cl-

Ubuntu16.04 completely delete nginx + php and ubuntu16.04nginx1.1 Delete nginx,-purge includes configuration files Sudo apt-get -- purge remove nginx1.2 automatically remove all unused software packages Sudo apt-get autoremove1.3 list nginx-related software dpkg --get-selections|grep nginx Execute the result of 1.3: stephen @ stephen-OptiPlex-390 :~ $ Dpkg -- get-selections | grep nginxnginx installnginx-common installnginx-core install1.4 Delete 1.3

This article only introduces the method of installing Docker on Ubuntu System host, osx,windows and other systems please refer to the reader:Window Installation Click hereOSX Install click hereInstalling Docker in the Ubuntu systemCurrently, the official support for the installation of Docker in the western Ubuntu system:Ubuntu 14.04 64-bitUbuntu 13.04 64-bitUbuntu 13.10 64-bitUbuntu 12.04 64-bitHowever, it is not that the Ubuntu (live Debian) version outside of the list above is not able to ins

Optiplex Desktop Series 1, start the computer, when you see the Dell splash screen, press "F2" key to enter the BIOS; 2, press NUM LOCK (Digital lock), Caps lock (case lock), Scroll Lock (Volume screen lock) three keys to the keypad above the corresponding three lights lit; 3, on the premise that three lights are all lit, restore the BIOS settings according to the following methods: Alt+f-factory Reset, after this key combination if you hear a cri

After reloading the system, the following problems usually occur: #problem : ivy@ivy-optiplex-380:/source$ sudo mount 192.168.9.18:/home/deep/dev-env/source.Mount:wrong fs type, bad option, bad superblock on 192.168.9.18:/home/deep/dev-env/source,Missing codepage or helper program, or other error(for several filesystems (e.g. NFS, CIFS) you mightNeed a/sbin/mount.There may be some important information in the system log, try DMESG | Tail such as the

From: http://code.google.com/p/android/issues/detail? Id = 11290 reported by udaykira...@gmail.com, SEP 16,201 0 Below test was executed on emulator.cts_host > start test android.graphics.cts.YuvImageTest#testCompressYuvToJpeg==============================================================Test package: android.graphicsandroid.graphics.cts.YuvImageTest#testCompressYuvToJpeg........................(fail)junit.framework.AssertionFailedError: MSE too large for normal case: 850.3241935483871 at android

, and transfer the water to the malt barrel, and the entire electronic component is controlled by raspberry.Building my electronic winemaking system and automating as much as possible means that I need the following components: A 5500-watt electronically heated alcohol container (HLT) A 50-foot (0.5-inch) Stainless steel coil (heat exchange recirculating mash system) that can be placed in a heated alcohol container A 5500-watt electric kettle Multiple solid sta