Linux installation JDK

1. Download JDK installation package jdk-7u71-linux-x64.rpm 2, install JDK# RPM-IVH jdk-7u71-linux-x64.rpm 3, configure environment variable #vi/ Etc/profile

Java_home=/usr/java/jdk1.7.0_71jre_home=/usr/java/jdk1.7.0_71/jrepath= $PATH: $JAVA _home/bin: $JRE _home/ Binclasspath=.: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar: $JRE _home/libexport java_home jre_home PATH CLASSPATH

#java-version#javac-version 4, write the test program #vi Test.java

public class Test {public        static void Main (String [] a)        {                System.out.println ("Hello World");}        }

#javac Test.java#java Test

Linux installation JDK