Install and deploy Java in Linux

Install and deploy Java in Linux
Install 6 small parts in Java (suitable for beginners) 1. download the software package

# wget http://download.Oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.tar.gz?AuthParam=1441937568_6752e90a2aa70be3cf8baa0b8905125c

I wonder why the downloaded wget name is messy.

# mv jdk-7u79-linux-x64.tar.gz?AuthParam=1441937568_6752e90a2aa70be3cf8baa0b8905125c /root/jdk-7u79-linux-x64.tar.gz
# cd

2. decompress the jdk File

# tar zxf jdk-7u79-linux-x64.gz -C /data/

3. Create a soft connection

# ln -s /data/jdk1.7.0_79 /usr/local/java

4. Edit the environment variable (input: $ to locate the last line of the file, and then execute o to edit at the end of the file)

# vim /etc/profile

1 #------------------------------JAVA------------------------------#    2 export JAVA_HOME=/usr/local/java    3 export PATH=$JAVA_HOME/bin:$PATH    4 export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

5. Make java environment variables take effect

# source /etc/profile

6. Verify that java is successfully installed (this command returns the java version information)

# java -version

1 java version "1.7.0_79" 2 Java(TM) SE Runtime Environment (build 1.7.0_79-b15)    3 Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)

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