Configure the JDK7 environment variable and ubuntujdk7 environment variable in ubuntu

Configure the JDK7 environment variable and ubuntujdk7 environment variable in ubuntu

• Jdk-7u55-linux-x64.tar.gz

• Ubuntu12.04 or later versions

Method/step

1. 1

   First, Baidu searches for jdk and selects the first website, which is Oracle Jdk. Click in

2. 2

   Click Download to Download the jdk for linux on the official website. Bytes

3. 3

   Create the target path folder of Java, which is placed under usr/lib/jvm. Perform the following operations on the terminal:

   $ Sudo mkdir/usr/lib/jvm

   Enter your password to complete the creation.

4. 4

   Decompress the downloaded jdk compressed file to the directory you created. Run the following command.

   $ Sudo tar-C/usr/lib/jvm-xzf jdk-7u55-linux-x64.tar.gz

   Put your jdk file under your home page. Here I put it"Download"In the previous directory

5. 5

   Check whether the jdk file is correctly installed in the folder you created, and view the file

6. 6

   Check whether java is available on the local machine. The following command is used here:

   $ Sudo update-alternatives -- list java

   If an error is displayed in the graph and java is not available in the system, perform the following steps:

7. 7

   Environment variable configuration command:

   $ Sudo gedit ~ /. Bashrc

   Add the following code:

   Export JAVA_HOME =/usr/lib/jvm/jdk1.7.0 _ 55

   Export JRE_HOME =$ {JAVA_HOME}/jre

   Export CLASSPATH =. :$ {JAVA_HOME}/lib :$ {JRE_HOME}/lib

   Export PATH =$ {JAVA_HOME}/bin: $ PATH

8. 8

   Check whether the configuration is successful: java-version

   Information is configured successfully!

   END

Notes

• Other methods are available for jdk configuration.

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