How to install JAVA 7 (JDK 7u75) in Centos/rhel 7/6/5 Fedora

Download the JDK first

For bit:-

# cd/opt/# wget--no-cookies--no-check-certificate--header "COOKIE:GPW_E24=HTTP%3A%2F%2FWWW.ORACLE.COM%2F; Oraclelicense=accept-securebackup-cookie "" Http://download.oracle.com/otn-pub/java/jdk/7u75-b13/jdk-7u75-linux-x64.tar.gz "

For bit:-

# cd/opt/# wget--no-cookies--no-check-certificate--header "COOKIE:GPW_E24=HTTP%3A%2F%2FWWW.ORACLE.COM%2F; Oraclelicense=accept-securebackup-cookie "" http://download.oracle.com/otn-pub/java/jdk/7u75-b13/ Jdk-7u75-linux-i586.tar.gz "

Unzip and move to/opt

# tar Xzf jdk-7u75-linux-x64.tar.gz

# MV Jdk1.7.0_75/opt

Set as Default virtual machine

# cd/opt/jdk1.7.0_75/# Alternatives--install/usr/bin/java java/opt/jdk1.7.0_75/bin/java Alternatives--config java

Select 4 when the following options appear

There is 4 programs which provide ' Java '.  Selection    Command-----------------------------------------------*  1           /usr/lib/jvm/jre-1.6.0-openjdk /bin/java + 2           /opt/jdk1.7.0_60/bin/java   3           /opt/jdk1.7.0_72/bin/java   4           /opt/jdk1.7.0_75/bin/ Javaenter to keep the current selection[+], or type selection number:4 [Press Enter]

Now you can try the Java version, the output is as follows

# Java-versionjava Version "1.7.0_75" Java (tm) SE Runtime Environment (build 1.7.0_75-b13) Java HotSpot (tm) 64-bit Server V M (build 24.75-b04, Mixed mode)

Set Environment variables

cat >>/etc/profile.d/java7. sh << eofexport java_home=/opt/jdk1. 7 . 0_75export jre_home=/opt/jdk1. 7. 0_75/jreexport PATH=\ $PATH:/opt/jdk1. 7. 0_75/bin:/opt/jdk1. 7. 0_75/jre/bineof

Re-open the terminal env|grep HOME to see the results

How to install JAVA 7 (JDK 7u75) in Centos/rhel 7/6/5 Fedora