Given：
What is the result？（）
A.5，6
B.5，5
C.6，5
D.6，6
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Given：
Under which three circumstances will the code on line 37 be executed？（）
A.The instance gets garbage collected.
B.The code on line 33 throws an exception.
C.The code on line 35 throws an exception.
D.The code on line 31 throws an exception.
E.The code on line 33 executes successfully.
Given：
If some sort of exception is thrown at line 34， which output is possible？（）
A.a
B.b
C.c
D.ac
E.abc
Given：
What is the result？（）
A.test end
B.Compilation fails.
C.test runtime end
D.test exception end
E.A Throwable is thrown by main at runtime.
Given：
What is the result when the go（） method is invoked？（）
A.00
B.0001
C.000120
D.00012021
E.Compilation fails
F.An exception is thrown at runtime
Given：
Which code， inserted at line 16， will cause a java.lang.ClassCastException？（）
A.Alpha a = x；
B.Foo f = （Delta）x；
C.Foo f = （Alpha）x；
D.Beta b = （Beta）（Alpha）x；
Given:
What is the result？（）
A.2
B.3
C.12
D.23
Click the Exhibit button.
Which code， inserted at line 14， will allow this class to correctly serialize and deserialize？（）
A.s.defaultReadObject（）；
B.this = s.defaultReadObject（）；
C.y = s.readInt（）； x = s.readInt（）；
D.x = s.readInt（）； y = s.readInt（）；
Given：
22.StringBuilder sb1 = new StringBuilder（"123"）；
23.String s1 = "123"；
24.// insert code here
25.System.out.println（sb1 + " " + s1）；
Which code fragment， inserted at line 24， outputs "123abc 123abc"？（）
A.sb1.append（"abc"）； s1.append（"abc"）；
B.sb1.append（"abc"）； s1.concat（"abc"）；
C.sb1.concat（"abc"）； s1.append（"abc"）；
D.sb1.concat（"abc"）； s1.concat（"abc"）；
E.sb1.append（"abc"）； s1 = s1.concat（"abc"）；
Given：
Which method will complete this class？（）
A.public int compareTo（Object o）{/*more code here*/}
B.public int compareTo（Score other）{/*more code here*/}
C.public int compare（Score s1，Score s2）{/*more code here*/}
D.public int compare（Object o1，Object o2）{/*more code here*/}
Given：
What is the result？（）
A.test end
B.Compilation fails.
C.test runtime end
D.test exception end
E.A Throwable is thrown by main at runtime.
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A programmer has an algorithm that requires a java.util.List that provides an efficient implementation of add（0， object）， but does NOT need to support quick random access.What supports these requirements？（）
A team of programmers is involved in reviewing a proposed design for a new utility class. After some discussion， they realize that the current design allows other classes to access methods in the utility class that should be accessible only to methods within the utility class itself.What design issue has the team discovered？（）
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