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# j
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Java Version Manager
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![image](https://user-images.githubusercontent.com/56473277/228444767-6cc15881-69a6-4ed1-8b30-f7c19413fde0.png)
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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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![image](https://user-images.githubusercontent.com/56473277/228444893-1ae5779e-74a2-4884-9c7d-09aa533d644e.png)
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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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![image](https://user-images.githubusercontent.com/56473277/228177030-defae4d2-77ba-4ded-9598-953330ac6cd8.png)
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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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![image](https://user-images.githubusercontent.com/56473277/228178315-9491c998-c839-441f-8d5e-78578273f57c.png)
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![image](https://user-images.githubusercontent.com/56473277/228178398-59382b04-ae1d-443a-9e20-ba41ab65ae7c.png)
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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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![image](https://user-images.githubusercontent.com/56473277/228178562-509f752f-134e-4b44-b220-26ed7fc9b33c.png)
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