2011年JAVA认证模拟题（48）
Q142 Which layout should you use to organize the components of a container in a tabular form?A CardLayout
B BorderLayout
C FlowLayout
D GridLayout
Q143 What is the result of the expression 5.4 + “3.2”?
A The double value 8.6
B The String “8.6”
C The long value 8
D The String “5.43.2”
Q144 Which of the following may have duplicate elements?
A Collection
B List
C Map
D Set
Q142 D
Q143 D
Q144 AB
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