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AutoCloseable |

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# 自动关闭资源接口

# 实现这个接口,那么在 try(){}catch{} 中就可以实现自动关闭资源

# Demo

AsynchronousServerSocketChannel 实现了该接口

try(AsynchronousServerSocketChannel server = AsynchronousServerSocketChannel.open()){

}catch(Exception e){

}