cd /d E:\Study\Java\ThreadStudy\ThreadStudy\src\

javac HelloLoader.java

java cn/hacker/cas/FindClassOrder

-----------------------------------------------------------------------------------------------------------------------------------------

cd /d E:\Study\Java\ThreadStudy\ThreadStudy\src

javac cn\hacker\cas\FindClassOrder.java

java -Xbootclasspath/a:"%JAVA_HOME%"/jre/lib/rt.jar -classpath E:\Study\Java\ThreadStudy\ThreadStudy\src\ cn/hacker/cas/FindClassOrder

java "%JAVA_HOME%"/jre/lib/rt.jar -Xbootclasspath/a:E:\Study\Java\ThreadStudy\ThreadStudy\src\ cn/hacker/cas/FindClassOrder

Java类的热替换：https://www.ibm.com/developerworks/cn/java/j-lo-hotswapcls/index.html

Java classloader机制测试命令