JdkInspection System Original Version[Email protected] ~]# java-versionJava Version "1.6.0_24"OpenJDK Runtime Environment (IcedTea6 1.11.1) (rhel-1.45.1.11.1.el6-x86_64)OpenJDK 64-bit Server VM (build 20.0-b12, Mixed mode)To view the JDK information further:[Email protected] ~]# Rpm-qa | grep javaTzdata-java-2012c-1.el6.noarchJava-1.6.0-openjdk-1.6.0.0-1.45.1.11.
I've recently started reading the book "in-depth understanding of Java virtual Machines". The first chapter of the practice is to manually compile Openjdk7, but the book steps are based on Windows, so on the Internet to search the Linux compiled OPENJDK information:http://blog.csdn.net/kindazrael/article/details/7266314http://guoh.org/lifelog/2011/05/compile-openjdk-by-yourself/This article is all said in m
Tags: dir localhost query log logs app Easy Server install config environment variableUpload files to the server, install Lrzsz, and upload the local files to the Linux system. If it is CentOS, it can be installed with Yum install Lrzsz command, more convenient.
or: yum-y install LRZSZ command installation, more more convenient. (External network connection required)
To install the LRZSZ, we only need to enter the command at the client terminal: RZ. installing the Linux version of the JDK The
Use apt-cachesearch to find the desired package name, for example: # sudoapt-cacheserachjava6openjdk-6-jdk-OpenJDKDevelopmentKit (JDK) openjdk-6-jre-OpenJDKJavaruntime, usingHotspotJITopenjdk-6-jre-headless-OpenJDKJavaru
Use apt-cache search to find the required software package nameFor example:# Sudo apt-cache serach java6Openjdk-6-jdk-OpenJDK Development Kit (JDK)Open
line
Root User
# Vi/etc/inittab
Find the following statement:
# Default runlevel. The runlevels used by RHS are:
#1-Single user mode
#2-Multiuser, without NFS (The same as 3, if you do not havenetworking)-Multi-user mode, does not support NFS
#3-Full multiuser mode-Multi-User mode
#4-unused
#5-X11-graphical interface
#6-reboot (Do NOT set initdefault to this)-Restart
Id: 5: initdefault:-The default running level is 5. You only need to change it to id: 3: initdefault :.
In text mode, you can use
We know that openjdk may be installed in Ubuntu in advance. However, I am used to Oraclejdk. ## Lt; uninstall openjdk gt; ### Terminalcommand: sudoapt-getpurgeopenjdk/openjdk *; sudoapt-getclean/autoclean; we should delete openjdk from the system. # Lt; download and install O
We know that
Previously, the jdk of ubuntu was installed with the apt-get install command. The default installation is openjdk, and the path is/usr/lib/jvm /. If you need to switch or upgrade the java version, you can use update-alternatives. Of course, you can uninstall and reinstall it, or you can install it by setting environment variables. This section describes how to install update-alternatives.Since the development of Linux, there have been a lot of availab
Preface
The materials I read now are compiled by openjdk7, and openjdk8 seems to have been compiled by openjdk7 in a large way.
make sanity
Will prompt that the sanity rule cannot be found, and then the compilation process is basically direct
./configuremake all
The official readme statement is clear.
The following process is recorded:Download Code
hg clone http://hg.openjdk.java.net/jdk8u/jdk8u jdk8ucd jdk8u bash ./get_source.sh
Then download the code and enter the code directory:
cd jdk8uInsta
Step 1: Check whether the built-in JDK in Linux is installed (uninstall the JDK installed in centos)
The installed centos comes with openjdk and uses the Java-version command. The following information is displayed:
Java versionOpenjdk Runtime Environment (build 1.6.0-b09)Openjdk 64-bit server VM (build 1.6.0-b09, mixed mode)
It is best to uninstall openjdk
Install JAVA in CentOS 7 and in centos 7
Step 1: Check whether the built-in JDK of Linux is installed
The installed CentOS comes with OpenJdk and uses the java-version command. The following information is displayed:
Java version "1.6.0"OpenJDK Runtime Environment (build 1.6.0-b09)OpenJDK 64-Bit Server VM (build 1.6.0-b09, mixed mode)
It is best to uninstall
variables in shell
I am not in favor of using this method. If you change the shell, your settings will be invalid. Therefore, this method is only for temporary use and will be re-set later, which is troublesome.
Run the following command on the shell terminal:
Export JAVA_HOME =/usr/share/jdk1.5.0 _ 05
Export PATH = $ JAVA_HOME/bin: $ PATH
Export CLASSPATH =.: $ JAVA_HOME/lib/dt. jar: $ JAVA_HOME/lib/tools. jar
In this way, the jdk environment variables are configured.
Maylorchao @ TerryLMay
Install JDK, Tomcat, and MySQL basic software in Linux.
1. Install JDK
After Centos6.5 is installed, OpenJDK is installed by default for Base Server. You must first Delete OpenJDK.
1.1 view the previous jdk
Check whether openjdk has been installed before.
If you are not a root user, you need to switch to the root user (su-root)
Command: rpm-qa | grep java
It is s
First step: Check if the Linux-brought JDK is installed (uninstall CentOS installed 1.4)The installed CentOS will bring openjdk, with the command java-version, will have the following information:Java Version "1.6.0"OpenJDK Runtime Environment (build 1.6.0-b09)OpenJDK 64-bit Server VM (build 1.6.0-b09, Mixed mode)It is best to uninstall the
First step: Check if the Linux-brought JDK is installedThe installed CentOS will bring openjdk, with the command java-version, will have the following information:Java Version "1.6.0"OpenJDK Runtime Environment (build 1.6.0-b09)OpenJDK 64-bit Server VM (build 1.6.0-b09, Mixed mode)It is best to uninstall the OPENJDK be
1. First look at the OPENJDK installation package$ RPM-QA |grep javaTzdata-java-2013b-1.el6.noarchJava-1.6.0-openjdk-1.6.0.0-1.61.1.11.11.el6_4.x86_64Java-1.7.0-openjdk-1.7.0.19-2.3.9.1.el6_4.x86_642. Check the OPENJDK version$ java-versionJava Version "1.7.0_19"OpenJDK Runt
=microxplorerThis is the official St company developed to initialize the STM32 peripheral driver software. The software is currently only available in Windows, but because it is in Java, it can run properly under Linux. However, because it is for the Windows environment, the resulting project needs to make some changes to normal use under Linux, this is left to the next.In addition, although the STM32CUBEMX has an Eclipse plugin, the plugin can only run under WindowsDebugger:St-link V2This is th
\ Technical essay \201405). Src.zip does not contain all JDK source code, such as the child package under Sun is not present in src.zip (eg. the sun.security package and its child packages used in this article are not included).To download these sub-packages, you need to download the source code for OPENJDK, OPENJDK is the open version of the JDK, released in the form of a GPL protocol. In the JDK7,
;=yy>=00, then cc=20.The SS default is 00b) Time [day] [increment] FormatThe time parameter is a number followed by a suffix, if time is a two-digit number, then at will treat it as an hour, four digits will be the hour and minute, if the four digits separated by a colon (:), then the meaning is hh:mm. The suffix can be am, PM, Zulu,zulu is GMT.Time also has some special parameter forms as follows: Noon, mi
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