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# j
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Java Version Manager
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## 安装
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默认文件下载安装在用户目录下 ```.j```
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指定安装目录需要 添加环境变量 ```J_HOME```
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## 命令
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### 列出
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列出所有可安装版本
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```
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j ls-remote
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```
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列出本地安装版本
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```
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j ls
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```
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### 下载
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```
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j install 8
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```
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### 切换版本
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```
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j use 17
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```
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