单项选择题X 纠错
A.4
B.5
C.8
D.9
E.Compilation fails.
F.An exception is thrown at runhime.
G.It is impossible to determine for certain.
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单项选择题
A.This code can throw an InterruptedException.
B.This code can throw an IllegalMonitorStateException.
C.This code can throw a TimeoutException after ten minutes.
D.Reversing the order of obj.wait() and obj.notify() might cause this method to complete normally.
E.A call to notify() or notifyAll() from another thread might cause this method to complete normally.
F.This code does NOT compile unless "obj.wait()" is replaced with "((Thread) obj).wait()".
多项选择题
A.java.lang.RuntimeException: Problem
B.run.java.lang.RuntimeException: Problem
C.End of method.java.lang.RuntimeException: Problem
D.End of method.run.java.lang.RuntimeException: Problem
E.run.java.lang.RuntimeException: Problem.End of method.
单项选择题
A.Compilation fails.
B.aAaA aAa AAaa AaA
C.AAaa AaA aAa aAaA
D.AaA AAaa aAaA aAa
E.aAa AaA aAaA AAaa
F.An exception is thrown at runtime.
单项选择题
A.Compilation fails.
B.An exception is thrown at runtime.
C.[608, 610, 612, 629] [608, 610]
D.[608, 610, 612, 629] [608, 610, 629]
E.[606, 608, 610, 612, 629] [608, 610]
F.[606, 608, 610, 612, 629] [608, 610, 629]
多项选择题
A.The class implements java.lang.Comparable.
B.The class implements java.util.Comparator.
C.The interface used to implement sorting allows this class to define only one sort sequence.
D.The interface used to implement sorting allows this class to define many different sort sequences.
多项选择题
A.public int hashCode()
B.public void hashCode()
C.public int compareTo(Object o)
D.public boolean equals(Object o)
E.public boolean compareTo(Key k)
单项选择题
A.return super.hashCode();
B.return name.hashCode() + age * 7;
C.return name.hashCode() + comment.hashCode() / 2;
D.return name.hashCode() + comment.hashCode() / 2- age * 3;
单项选择题
A.The set variable contains all six elements from the coll collection, and the order is guaranteed to be preserved.
B.The set variable contains only three elements from the coll collection, and the order is guaranteed to be preserved.
C.The set variable contains all six elements from the coll collection, but the order is NOT guaranteed to be preserved.
D.The set variable contains only three elements from the coll collection, but the order is NOT guaranteed to be preserved.
单项选择题
A.Set set = new TreeSet();
B.Set set = new HashSet();
C.Set set = new SortedSet();
D.List set = new SortedList();
E.Set set = new LinkedHashSet();