:Main
cls & set "jdk_version="
@echo off
set JDK_1_6=C:\Program Files\Java\jdk1.6.0_43
set JDK_1_7=C:\Program Files\Java\jdk1.7.0_79
set JDK_1_8=C:\Program Files\Java\jdk1.8.0_112
color 0a
echo.------------------------------------
echo.TODO:设置java环境变量
echo -----------选择JDK版本--------------
echo 1、1.6
echo 2、1.7
echo 3、1.8
echo.------------------------------------
echo, & set /p jdk_version=请输入编号并回车：
if "%jdk_version%"=="1" goto JDK_1_6_tag
if "%jdk_version%"=="2" goto JDK_1_7_tag
if "%jdk_version%"=="3" goto JDK_1_8_tag
:JDK_1_6_tag
set JAVA_HOME=%JDK_1_6%
goto SET_JAVA_VARIBLE
:JDK_1_7_tag
set JAVA_HOME=%JDK_1_7%
goto SET_JAVA_VARIBLE
:JDK_1_8_tag
set JAVA_HOME=%JDK_1_8%
goto SET_JAVA_VARIBLE
:SET_JAVA_VARIBLE
set classpath=.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tool.jar;
set PATH=%JAVA_HOME%\bin;%PATH%
javac -version
