1下载地址:http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
2安装jdk,
3配置环境变量.
4点击安装目录下bin目录下的java.exe.
5在命令提示符输入java -version.
6在eclipse加入jre.
1下载地址:http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html