Question

如何在Ubuntu Linux上安装Oracle Java

Answer 1

sudo apt-get purge openjdk-\*

sudo mkdir -p /usr/local/java

Copy the Oracle Java binaries into the /usr/local/java directory. In most cases, the Oracle Java binaries are downloaded to: /home/"your_user_name"/Downloads.

32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions:

Type/Copy/Paste: cd /home/"your_user_name"/Downloads

Type/Copy/Paste: sudo cp -r jdk-7u25-linux-i586.tar.gz /usr/local/java

Type/Copy/Paste: sudo cp -r jre-7u25-linux-i586.tar.gz /usr/local/java

Type/Copy/Paste: cd /usr/local/java

64-bit Oracle Java on 64-bit Ubuntu Linux installation instructions:

Type/Copy/Paste: cd /home/"your_user_name"/Downloads

Type/Copy/Paste: sudo cp -r jdk-7u25-linux-x64.tar.gz /usr/local/java

Type/Copy/Paste: sudo cp -r jre-7u25-linux-x64.tar.gz /usr/local/java

Type/Copy/Paste: cd /usr/local/java

Unpack the compressed Java binaries, in the directory /usr/local/java

32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions:

Type/Copy/Paste: sudo tar xvzf jdk-7u25-linux-i586.tar.gz

Type/Copy/Paste: sudo tar xvzf jre-7u25-linux-i586.tar.gz

64-bit Oracle Java on 64-bit Ubuntu Linux installation instructions:

Type/Copy/Paste: sudo tar xvzf jdk-7u25-linux-x64.tar.gz

Type/Copy/Paste: sudo tar xvzf jre-7u25-linux-x64.tar.gz

At this point, you should have two uncompressed binary directories in /usr/local/java for the Java JDK/JRE listed as:

Type/Copy/Paste: ls -a

jdk1.7.0_25

jre1.7.0_25