Given the following six method names： add Listener add Mouse Listener set Mouse Listener delete Mouse Listener remove Mouse Listener register Mouse Listener How many of these method names follow JavaBean Listener naming rules？（）<br>A:1<br>B:2<br>C:3<br>D:4

Given the following six method names： add Listener add Mouse Listener set Mouse Listener delete Mouse Listener remove Mouse Listener register Mouse Listener How many of these method names follow JavaBean Listener naming rules？（）
A:1
B:2
C:3
D:4

出自：Oracle认证

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