Linux installation JDK JRE

Uninstall the previous Rpm-qa|grep JDK First

Then rpm-e--nodeps all

Then unzip the installation package, vi/etc/profile Configure the environment

java_home=/usr/local/java/jdk1.7.0_79

Jre_home=/usr/local/java/jdk1.7.0_79/jre

Path= $JAVA _home/bin:jre_home/bin: $PATH

Classpath=.: $JAVA _home/lib/jt.jar: $JAVA _home/lib/tools.jar: $JRE _home/lib

Export CLASSPATH Ld_library_path

Export Java_home jre_home PATH CLASSPATH

Source/etc/profile or restart the server

Java javac Validation

If you have permission issues, you can chmod the 777 bin directory under Java javac

Linux installation JDK JRE