focus问题

Question

http://www-900.ibm.com/developerWorks/cn/java/j-awtfocus/

Answer 1

kypfos(大学里没有回忆):
又加勋啦咧~

Answer 2

http://www-900.ibm.com/developerWorks/cn/java/j-awtfocus/

Answer 3

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