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jdk ---Java Development Kit, Java development kit.
jre ---Java Runtime Environment java runtime environment.
And eclipse is a java IDE, only java development tools.
There are two main parts in the java software package: jdk and jre.
The former is the JDK used to develop java programs.
jre is the abbreviation of java runtime environment, including java runtime environment and java plug-in. jre is used to run, test and transfer java applications. It includes java virtual machine, java development platform core classes and some support files. It does not include development tools - compilers, debuggers and other tools (existing in jdk) . Therefore, developing java programs requires not only jdk, but also jre.
This article comes from the CSDN blog. Please indicate the source when reprinting: http://blog.csdn.net/boos_jian/archive/2009/12/18/5030286.aspx
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