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To view the version of a JDK that is already installed on this computer:[[email protected] ~]# Java-versionjava version "1.6.0" OpenJDK Runtime Environment (build 1.6.0-b09) OpenJDK Client VM (b Uild 1.6.0-b09, Mixed mode)If it's not the JDK you need, how do I uninstall it? And how do you install the JDK you need?Uninstall jdk****************************** installed on this machineFirst find the JDK that th

Step 1: Check whether the built-in JDK of Linux is installed (uninstall centOS 1.6 installed). after CentOS is installed, it comes with OpenJdk. run the java-version command. the following information is displayed: javaversion quot; 1.6.0 quot; OpenJDKRuntimeEnvironment (build1.6.0-b09) OpenJDK64-BitS Step 1: Check whether the built-in JDK of Linux is installed (uninstall centOS 1.6 installed) The installed CentOS comes with OpenJdk and uses the jav

Step 1: Check whether the built-in JDK of Linux is installed (uninstall centOS 1.4 installed). after CentOS is installed, it comes with OpenJdk. run the java-version command. the following information is displayed: javaversion quot; 1.6.0 quot; OpenJDKRuntimeEnvironment (build1.6.0-b09) OpenJDK64-BitS Step 1: Check whether the built-in JDK of Linux is installed (uninstall centOS 1.4 installed) The installed CentOS comes with OpenJdk and uses the jav

Install JDK in CentOS Step 1: Check whether the built-in JDK of Linux is installed (uninstall centOS 1.6 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 openjdk first and install the jdk o

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 OPENJDK before installing Sun's JDK.See Rpm-qa First | grep javaThe

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 OPENJDK before installing Sun's JDK.See Rpm-qa First | grep javaThe

Step 1: Check whether the built-in JDK of Linux has installed and installed CentOS with OpenJdk. run java-version to view the following information: javaversion quot; 1.6.0 quot; openJDKRuntimeEnvironment (build1.6.0-b09) OpenJDK64-BitServerVM (build1. 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"Open

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 OPENJDK before installing Sun's JDK.See Rpm-qa First | grep javaThe

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 first and install the JDK of sun. Check rp

Export Java_home=/opt/java/jdk1.8.0_172export classpath=.: $JAVA _home/jre/lib/rt.jar: $JAVA _home/lib/dt.jar: $JAVA _ Home/lib/tools.jarexport path= $PATH: $JAVA _home/bin　　Delete OpenJDKThe installed CentOS will bring openjdk, with the command java-version, will have the following information:" 1.6.0 " 1.6. 0-1.6. 0-b09, mixed mode)It is best to uninstall the OPENJDK before installing Sun's JDK.View FirstRpm-qa | grep javaThe following information

View the current system Jdk:rpm-qa | grep jdk The results obtained: The code is as follows Copy Code [Root@dc-01 java]# Rpm-qa | grep JDKjava-1.6.0-openjdk-1.6.0.0-1.45.1.11.1.el6.i686 Uninstall OPENJDK: The code is as follows Copy Code [Root@wx32 local]# Java-versionJava Version "1.6.0"OpenJDK Runtime Environment (build 1.6.0-b09)OpenJDK 64-bit Server VM (build 1.6.0-

Node Control Apr-1.2.7-11.el5_3.1.x86_64.rpmPostgresql-libs-8.1.18-2.el5_4.1.x86_64.rpmApr-util-1.2.7-11.el5.x86_64.rpmHttpdEuca-axis2c-1.6.0-1.x86_64.rpmEuca-rampartc-1.3.0-1.x86_64.rpmPerl-Crypt-OpenSSL-Random-0.04-1.el5.rf.x86_64.rpmPerl-Crypt-OpenSSL-RSA-0.25-1.el5.rf.x86_64.rpmEucalyptus-2.0.2-1.x86_64.rpmEucalyptus-gl-2.0.2-1.x86_64.rpmEucalyptus-nc-2.0.2-1.x86_64.rpm Group Control Apr-1.2.7-11.el5_3.1.x86_64.rpmPostgresql-libs-8.1.18-2.el5_4.1.x86_64.rpmApr-util-1.2.7-11.el5.x86_64.rpmHtt

Install JAVA on CentOS7 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 openjdk first and install the jdk of sun. Check rpm-qa | grep java

Install JAVA 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 openjdk first and install the jdk of sun. Check rpm-qa | grep jav

How to Use yum to install and uninstall jdk and use yum to uninstall jdk 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 openjdk first and install the jdk of sun. Check rpm-qa | grep java first The f

2011-10-21 13:59:38Tags: CentOS casual workplaceFirst 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 OPENJDK before inst

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 OPENJDK before installing Sun's JDK.See Rpm-qa First | grep javaThe

First step: Uninstall the JDK from the old Linux① viewing native JDK versionsJava code Java-version The results are as followsJava code 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) ② Uninstall the OpenJDK that comes with the machine and install Sun's JDK.Java code Rpm-qa | grep ja

Check whether JDK is installed in Linux.The installed CentOS comes with OpenJdk and uses the java-version command. The following information is displayed:Java version "1.6.0 Prime;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 openjdk first and install the jdk of sun.Check rpm-qa | grep java firstThe following information is d

Step One: View and uninstall the OPENJDK from CentOS # installed CentOS will bring openjdk, with command Java-version, will have the following information: [root@localhost ~]# java-version 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's best to uninstall Ope first NJDK, installing the Sun's JDK. First Check Rpm-qa | grep Java