如何安装java7和java 8? [英] How to Install both java7 and java 8?
问题描述
如何在windows7机器上安装java7和java8。
How to install both java7 and java8 in windows7 machine.
如果是,那么从java7到java8的顺序和任何开关选项是什么?
If Yes then what is the order and any switch options from java7 to java8 ?
推荐答案
您可以在计算机上安装任意数量的 JDK
实例(并在项目中使用它们)或工具),但只有一个可以作为主要使用 JAVA_HOME
env变量,并且应该添加 bin
dir到 PATH
的值,如%JAVA_HOME%\ bin
。
You can install any number of JDK
instances on your computer (and use them in projects or tools), but only one can be used as the main with JAVA_HOME
env variable and its bin
dir should be added to the PATH
value like %JAVA_HOME%\bin
.
JAVA_HOME
位置来检测 JDK
位置和二进制文件目录> PATH 允许您在终端或直接电话中使用 JDK
等应用,例如 javac
从任何地方
JAVA_HOME
location is used by most software to detect default JDK
location and binaries dir in PATH
allows you to use JDK
apps like javac
in the terminal or by direct calls from anywhere
如果一切正确,那么您应该在终端中看到所需的java版本,只需输入:
If everything is correct then you should see desired java version in terminal just typing:
C:\Users\Admin>%JAVA_HOME%/bin/java -version
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
Linux,Mac OS X或Win安装略有不同,但您可以在 Oracle网站。
Linux, Mac OS X or Win installations slightly differ from each other, but you can find all the necessary instructions at the Oracle site.
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