What basic qualities should JAVA software engineers possess ?, Java software engineer
Required knowledge: Software Enterprises require basic software engineers to possess six basic qual
to improve performance: 1, reduce the number of operations of the database, commonly used data stored in memory. 2, reduce the dependency between table and table26, what is the utilization of resources. The proportion of resources that the SOFTWARE product actually uses and the amount of resources it applies to.27. What is the purpose of the load test? The pressure test of different frequency, different time length and different load quantity of each
cases for testing.9. do not disregard the test cases, excluding arbitrariness.In particular, when a modified program is re-tested, if the test case is not strictly executed, it is possible to ignore a large number of new errors caused by the modification errors. Therefore, the relevance of regression testing should also be given sufficient attention, and a significant portion of the resulting errors are missed in the early test results.10. More in-depth testing should be performed on the segmen
environment of testing, completely and real users, there is a certain risk, need to pay attention to:① time period Selection: The current network performance test may affect the normal user, to avoid peak, choose midnight or early morning to carry out.② Garbage Data processing: If the current network performance testing involves the operation of writing data, these data must be processed later, in order to facilitate the processing, the design of pre-data should have a regular follow-up.③ Netwo
What basic qualities should JAVA software engineers possess ?, Java software engineer
Required knowledge: Software Enterprises require basic software engineers to possess six basic qual
bug is a function that the system needs to implement the failure, violation.Smoke testSmoke test is the basic function of the software testing, testing the object is each new compiled need to formally test the software version, the purpose is to confirm the basic function of the s
Basic software talents must have six basic qualities-general Linux technology-Linux programming and kernel information. For more information, see the following. Basic Quality 1: Good coding capability, which directly determines the efficiency of project development. This requires s
function and is specified for configuration managementHardware/software, or their collection.Software Configuration Management objects are software configuration items, which are information items generated during software engineering. FollowISO9000-3The software configuration can be:-Documents and data related to con
Basic knowledge of Software Development
Han huijian
I. Concept of software
1Software:Is a part of computer systems that is mutually dependent on hardware. It includes a complete set of programs, data, and related documents. Where
Program-a sequence of commands executed in accordance with the previously designed functional and performance requirements
Ø data-the
directory.CrontabCorrect:Find the actual path to the file: Find/mnt-name ' pam-devel* 'There are pretty good search commands under Linux! Usually find is not very common! Because of the slow speed, but also the hard drive! Generally we are first to use Whereis or locate to check, if really can not find, just to find to search Yo! Why? Because Whereis only look for files under certain directories in the system, locate is using a database to search for filenames, of course, the two are quite fast
if there is a corrupted dependencySource Package Compilation installation:Role:1, the software according to the needs of users to be customized;2, two times development; note: To be based on the license certificate Agreement of the software, developer license two times to develop;Skills:1, before the installation can see the package decompression Redme or similar files, here are generally related to the in
Code niche, a platform for technology sharing in the Android field
Author: android Grassroots kingLinks: https://www.jianshu.com/p/30bfa1f73532Disclaimer: This article is Android Grassroots original, forwarding, etc. please contact the original author authorization. definition
Software architecture refers to the design decisions that are made on various aspects of the software, both behavioral and structura
the use of the TAR and gzip features, so the Tarball file general extension of *. tar.gz, or *.tgz.
How the Tarball of 101 software is installed, the basic process is this
1 Download the tarball from the manufacturer's Web page
2 will tarball decompression, generate a lot of source code files
3 Start compiling the source code with GCC (the target file will be generated)
4 then use GCC for function lib
Ubuntu some basic software installation methodsFirst of all, there are several ways to install Ubuntu software:1. How to install the Deb packageDeb is the Debian Linux package management method, Ubuntu is a Linux distribution of the Debian department, theThis software installation is supported by default, and when down
Installation:sudo apt-get install eclipseOpen EclipseADT Configuration: (Download good package does not need to unzip)Click help-> Install new Software->addAndroid SDK Configuration:Export Path=/usr/local/android-sdk-linux/tools:/usr/local/android-sdk-linux/platform-tools: $PATH1. Launch Android SDK Manager, open the main interface, select "tools", "options...", pop up the "Android SDK manager-settings" window2. In the "Android SDK manager-settings"
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The article series of the system architecture has been stranded for too long. Recently, I have also sorted out my ideas and completed the unfinished content. It cannot be dragged on for too long. So let's write it over the weekend. Today I
We are talking about stand-alone applications. clicking an application can be complicated or simple. Some stand-alone so
processes: Use case driven, basic architecture centric, iterative, and incremental.The software process in up is decomposed into four sequential phases, namely, the initial phase, the refinement phase, the construction phase, and the delivery stage. At the end of each phase, a technical review is scheduled to determine whether the objectives of this phase have been met. If the review results are satisfacto
.? The Tarball file with bzip2 and XZ is compressed with the extension *.tar.bz2, *.tar.xz.? Recently due to bzip2 and XZ compression ratio is better, so tarball gradually with bzip2 and XZ compression technology to replace Gzip.The files in the Tarball package are usually:? source code files;? Detection program file (may be configure or config file name);? Simple instructions and installation instructions for the software (install or README).A tarbal
filesRetrieving content grepgrep "Content"./*grep "Hello"./*-R //Current directory recursively finds lines that contain a Hello wordDeb Package InstallationDkpg - I. Name installationDkpg - R nameUninstallSource Package Installation1. Unpacking tar2. CD./3. ./configure4. Make5. Make InstallNetworking ApproachNAT does not have a network segment, but when Ping goes out, it is a bridge that goes out of the way of the hosttwo different IPs, same network segmentProblem with your own virtual machi
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