1,首先安装jdk (根据自己所用的电脑选择) :https://www.oracle.com/technetwork/java/javase/downloads/index.html
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2,安装成功后,配置环境变量 (环境变量自行百度搜索)
3,环境变量配置成功后,在控制台输入java -version (出现下图信息)
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4 ,安装Eclipse 下载地址:https://www.eclipse.org/downloads/packages/
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(看红色尖头方向,这里有个小坑,乍一眼以为是付费的,其实是免费的)
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5,安装成功后,打开eclipse->Help->Install New Software
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