The main structure JDK, JRE, JVM relationship between the three, as well as JDK, JRE contains what

Relationship: JDK includes JRE, JRE included JVM

Structure: JDK = JRE + Java development tools (javac.exe, java.exe, javadoc.exe and other tools)

   JRE = JVM + Java core class libraries

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Origin www.cnblogs.com/rijiyuelei/p/12608305.html