CentOS installation Jdk7

1, download the JDK??

Http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html?

Choose jdk-7u75-linux-x64.rpm?

2. Install the JDK?

New Catalog? Mkdir/usr/java?

Switch to download directory to copy the downloaded files to /usr/java? CP Jdk-7u75-linux-x64.rpm/usr/java?

Switch to/usr/java? Modify Permissions chmod +x jdk-7u75-linux-x64.rpm?

Run RPM-IVH jdk-7u75-linux-x64.rpm

3, environment variable configuration?

Vi/etc/profile

Added at the end:?

#set Java Environment

Export java_home=/usr/java/jdk1.7.0_75

Export classpath=.: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar

Export path= $PATH: $JAVA _home/binexport java_home CLASSPATH PATH?

Save exit : X?

Enable environment variable configuration: source/etc/profile

? Establish a connection:?

Cd/usr/bin

Ln-s-f/usr/java/jdk1.7.0_75/jre/bin/java

Ln-s-f/usr/java/jdk1.7.0_75/bin/javac?

4, testing?

Java-version? Javac?

CentOS installation Jdk7