多项选择题
A JavaBeans component has the following field：
11. private boolean enabled；
Which two pairs of method declarations follow the JavaBeans standard for accessing this field？（）
A.A
B.B
C.C
D.D
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Given： What is the result？（）
A. An exception is thrown at runtime.
B. r， e， o，
C. Compilation fails.
D. r， t， t， -
单项选择题
Click the Exhibit button. Given： ClassA a = new ClassA（）； a.methodA（）； What is the result？（）
A. The code runs with no output.
B. Compilation fails.
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单项选择题
Given： What is the result of calling search with a valid List implementation？ （）
A. 0
B. The result is undefined.
C. a
D. 2
E. 1
F. c
G. b
