Ubuntu14.04 64-bit JDK1.7 Installation

Ubuntu14.04 64-bit JDK1.7 Installation

Install JDK1.7 on Ubuntu14.04 64-bit.

1. Create a folder

Bkjia @ bkjia :~ $ Sudo mkdir/usr/lib/jvm

2. decompress the file

Bkjia @ bkjia :~ $ Sudo tarzxvf jdk-7u71-linux-x64.tar.gz-C/usr/lib/jvm

3. Open the environment variable file.

Bkjia @ bkjia :~ $ Sudo gedit/etc/profile
[Sudo] password for bkjia:

(Gedit: 6266): IBUS-WARNING **: The owner of/home/bkjia/. config/ibus/bus is not root!

(Gedit: 6266): Gtk-WARNING **: Calling Inhibit failed: grule. error: org. freedesktop. invalid. error. serviceUnknown: The name org. gnome. sessionManager was not provided by any. service files

(Gedit: 6266): Gtk-WARNING **: Calling Inhibit failed: grule. error: org. freedesktop. invalid. error. serviceUnknown: The name org. gnome. sessionManager was not provided by any. service files

4. Set Environment Variables

# Set java environment
Export JAVA_HOME =/usr/lib/jvm/jdk1.7.0 _ 71
Export JRE_HOME =$ {JAVA_HOME}/jre
Export CLASSPATH =. :$ {JAVA_HOME}/lib :$ {JRE_HOME}/lib
Export PATH =$ {JAVA_HOME}/bin: $ PATH

5. Set the default JDK

Bkjia @ bkjia :~ $ Sudo update-alternatives -- install/usr/bin/java/usr/lib/jvm/jdk1.7.0 _ 71/bin/java 300
Update-alternatives: using/usr/lib/jvm/jdk1.7.0 _ 71/bin/java to provide/usr/bin/java (java) in automatic mode
Bkjia @ bkjia-ThinkPad-Edge-E545 :~ $ Sudo update-alternatives -- install/usr/bin/javac/usr/lib/jvm/jdk1.7.0 _ 71/bin/javac 300
Update-alternatives: using/usr/lib/jvm/jdk1.7.0 _ 71/bin/javac to provide/usr/bin/javac (javac) in automatic mode

6. Check whether JDK is successfully installed.

(1) java-version

Bkjia @ bkjia :~ $ Java-version
Java version "1.7.0 _ 71"
Java (TM) SE Runtime Environment (build 1.7.0 _ 71-b14)
Java HotSpot (TM) 64-Bit Server VM (build 24.71-b01, mixed mode)
Bkjia @ bkjia :~ $

(2) java

Bkjia @ bkjia :~ $ Java
Usage: java [-options] class [args...]
(Execution class)
Or java [-options]-jar jarfile [args...]
(Execute the jar file)
The options include:
-D32 uses a 32-bit data model (if available)
-D64 uses a 64-bit data model (if available)
-Server: Select "server" VM
The default VM is server,
Because you are running on a server computer.

-Cp <directory and Class search path for zip/jar files>
-Classpath <directory and Class search path for zip/jar files>
Separated directories and JAR files
And ZIP file list, used to search for class files.
-D <name >=< value>
Set System Properties
-Verbose: [class | gc | jni]
Enable detailed output
-Version: output the product version and exit.
-Version: <value>
The specified version is required for running.
-Showversion: output the product version and continue
-Jre-restrict-search |-no-jre-restrict-search
Include/exclude user-specific JRE in version search
-? -Help: output the help message.
-X outputs help for non-standard options
-Ea [: <packagename>... |: <classname>]
-Enableassertions [: <packagename>... |: <classname>]
Enable assertions at the specified Granularity
-Da [: <packagename>... |: <classname>]
-Disableassertions [: <packagename>... |: <classname>]
Disable assertions with a specified Granularity
-Esa |-enablesystemassertions
Enable System assertions
-Dsa |-disablesystemassertions
Disable system assertions
-Agentlib: <libname> [= <option>]
Load the local proxy library <libname>, such as-agentlib: hprof
For more information, see-agentlib: jdwp = help and-agentlib: hprof = help.
-Agentpath: <pathname> [= <option>]
Load the local proxy library by full path name
-Javaagent: <jarpath> [= <option>]
For more information about how to load Java programming language proxies, see java. lang. instrument.
-Splash: <imagepath>
Use the specified image to display the startup Screen
For more information, see http://www.oracle.com/technetwork/java/javase/documentation/index.html.
Bkjia @ bkjia :~ $

(3) javac

Bkjia @ bkjia :~ $ Javac
Usage: javac <options> <source files>
Possible options include:
-G generates all debugging information
-G: none does not generate any debugging information
-G: {lines, vars, source} only generates some debugging information
-Nowarn does not generate any warning
-Verbose outputs messages about the operations being performed by the compiler.
-Deprecation: output the source location of an outdated API
-Classpath <path> specifies the location for searching user class files and annotation handlers.
-Cp <path> specifies the location for searching user class files and annotation handlers
-Sourcepath <path> specifies the location of the Input Source file to be searched.
-Bootclasspath <path> overwrites the position of the boot class file
-Extdirs <directory> overwrites the location of the installed Extension
-Endorseddirs <directory> overwrites the location of the standard path of the signature.
-Proc: {none, only} controls whether to perform annotation processing and/or compilation.
-Processor <class1> [, <class2>, <class3>...] Name of the annotation handler to run; bypassing the default search process
-Processorpath <path> specifies the location of the comment handler.
-D <directory> specifies the location of the generated class file
-S <directory> specifies the location of the generated source file.
-Implicit: {none, class} specifies whether to generate class files for implicitly referenced files
-Encoding <encoding> specifies the character encoding used by the source file.
-Source <release version> provides source compatibility with the specified release version
-Target <release> generates class files of a specific VM version.
-Version Information
-Help: output the summary of standard options.
-Option for passing the keyword [= value] To the annotation Handler
-X outputs a feed of non-standard options
-J <tag> pass the <tag> directly to the runtime system
-Terminate Compilation When Werror is warned
@ <File Name> read from file option and file name

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