A.如果該對象的notify()方法已經(jīng)被調(diào)用,則不會產(chǎn)生任何效果 B.在另外一個對象調(diào)用它的notify()或 notifyAll()方法之前該對象一直被掛起 C.將拋出一個異常 D.該對象的wait()方法與其他對象自動同步
A.String s = "john" + " was " + " here"; B.String s = "john" + 3; C.int a = 3 + 5; D.int a = 5 + 5.5;
A.’a’ B."a" C.new Character(a) D.\000a