File list (Check if you may need any files):
State\.classpath
.....\.project
.....\bin\State\Button.class
.....\...\.....\GreenState.class
.....\...\.....\RedState.class
.....\...\.....\State.class
.....\...\.....\Test.class
.....\...\.....\YellowState.class
.....\src\State\Button.java
.....\...\.....\GreenState.java
.....\...\.....\RedState.java
.....\...\.....\State.java
.....\...\.....\Test.java
.....\...\.....\YellowState.java
.....\类图.jude
.....\bin\State
.....\src\State
.....\bin
.....\src
State