In the near future, learning a technology must run under Linux, so start learning how to use Linux.
In the installation of JDK difficulties encountered, the environment variable configuration is not successful, took a day to finish, special share out for your reference.
To install the JDK under Linux, proceed as follows
1: Download the JDK Package: This chapter uses a file with the suffix tar.gz (no installation required), such as jdk-7u67-linux-i586.tar.gz
2: Save the JDK file to the Linux directory: Use the mkdir command to generate the User/java directory from the console, and put the file under it
3: Unzip the tar.gz file: Through the console, enter User/java, execute $ tar zxvf jdk-7u67-linux-i586.tar.gz, unzip it
4: Configure Environment variables: Open the console, run sudo vi/etc/profile, insert the content you want to configure at the end, press ESC, enter (: Wq Save and exit)
java_home=/home/gcs/user/java/jdk1.7. 0_67path= $JAVA _home/bin: $PATHCLASSPATH=.: $JAVA _home/lib /dt.jar: $JAVA _home/lib/tools.jarexport java_homeexport pathexport CLASSPATH
5: Run $ source/etc/profile to make the configuration environment effective
6: Run $ java-version to see if it takes effect. If the JDK version number appears, install and configure the environment variable successfully
Install tar.gz types of JDK under Linux and configure environment variables