Description: java to do a simple elevator simulation, to simulate the perfect elevator door, close the door, and moves up and down, etc.
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File list (Check if you may need any files):
电梯\CallListener.class
....\DtDemo.class
....\DtDemo.java
....\DtJrameDemo.class
....\DtJrameDemo.java
....\DtpaintDemo.class
....\DtpaintDemo.java
....\TreadGroup.class
....\TreadGroup.java
电梯