Ubuntu12.4 install jdk1.8 and ubuntu12.4jdk1.8

Ubuntu12.4 install jdk1.8 and ubuntu12.4jdk1.8

Ubuntu12.4 install jdk1.8

1. Copy the jdk to be installed to the shared folder.

(You can also copy data with a USB flash drive)

2. I copied jdk to the user folder.

(This can be done elsewhere, but the path must be changed accordingly)

3. Run the copy, install, and unzip command:

Decompress:

 

View the decompressed Folder:

4. Configure environment variables:

Write the following five lines of code:

Make the configuration take effect:

5. view the installed jdk:

Java-version

Java

Javac

6. You can also use the following command to modify the default jdk:

 

Sudo update-alternatives-install/usr/bin/java/usr/lib/jvm/jdk1.8.0 _ 25/bin/java300

 

Sudo update-alternatives-install/usr/bin/javac/usr/lib/jvm/jdk1.8.0 _ 25/bin/javac300

 

Sudo update-alternatives-config java