格林模拟试题二(下)(8)
question 55)
which of the following are methods of the thread class?
1) yield()
2) sleep(long msec)
3) go()
4) stop()
question 56)
1) addelement
3) append
question 57)
1) adding more classes via import statements will cause a performance overhead, only import classes you actually use.
3) a inner class may under some circumstances be defined with the protected modifier
question 58)
1) mousepressed(mouseevent e){}
3) functionkey(keypress k){}
question 59)
1) iterator
3) toarray
question 60)
1) allows two process to run in paralell but to communicate with each other
3) ensures that two or more processes will start and end at the same time
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