Linux under source installation JDK

One, find. tar.gz Source Package

Will Jdk1. XXXXXXX.tar.gz source package is placed in the location you want to, for example, I put on the U disk

1, Mkdir/mnt/udisk #创建挂载点:

2, Mount/dev/sdb1/mnt/udisk #将u盘挂载到/mnt/udisk

3, Tar Zxvf/mnt/udisk/xxxx/jdk1. Xxxxxxx.tar.gz/usr/local/java #将压缩文件解压到/usr/local/java

4, mv/usr/local/java/jdk1.7xxxxxx/usr/local/java/jdk1.7 #将解压后的文件的名字改短一点, convenient to set the environment variables (this step can also not change the text Name)

Second, set environment variables

1, vim/etc/profile #设置配置文件

Export java_home=/usr/local/java/jdk1.7

Export Classpath=.:%java_home%/lib/dt.jar:%java_home%/lib/tools.jar

Export path= $PATH: $JAVA _home/bin

2, Source/etc/profile #申明环境变量

Third, the test is successful

VI Test.java

public class test{

public static void Main (string[] args) {

System.out.println ("Hello World");

}

}

Javac Test.java

Java Test

Hello World

okkkkk!

Linux under source installation JDK