单项选择题X 纠错
A. i = 6 and j = 5
B. i = 5 and j = 5
C. i = 6 and j = 4
D. i = 5 and j = 6
E. i = 6 and j = 6
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多项选择题
A. Class B’s constructor is public.
B. Class B’s constructor has no arguments.
C. Class B’s constructor includes a call to this().
D. Class B’s constructor includes a call to super().
单项选择题
A. new Animal().soundOff();
B. Elephant e = new Alpha1();
C. Lion 1 = Alpha.get(“meat eater”);
D. new Alpha1().get(“veggie”).soundOff();
单项选择题
A. After line 5.
B. After line 9.
C. After the start() method completes.
D. When the takeDemo() method completes.
E. When the instance running this code is made eligible for garbage collection.
多项选择题
A. float[] = new float(3);
B. float f2[] = new float[];
C. float[] f1 = new float[3];
D. float f3[] = new float[3];
E. float f5[] = { 1.0f, 2.0f, 2.0f };
F. float f4[] = new float[] { 1.0f. 2.0f. 3.0f};
单项选择题
A. i = 3
B. Compilation fails.
C. A ClassCastException is thrown at line 6.
D. A ClassCastException is thrown at line 7.
单项选择题
A. Java.util.Map.
B. Java.util.List.
C. Java.util.Hashable.
D. Java.util.Collection.
多项选择题
A. Java.util.Map.
B. Java.util.Set.
C. Java.util.List.
D. Java.util.StoredSet.
E. Java.util.StoredMap.
F. Java.util.Collection.
单项选择题
A. Just after line 5.
B. Just after line 6.
C. Just after line 7.
D. Just after line 8(that is, as the method returns).
多项选择题
A. A static inner class requires a static initializer.
B. A static inner class requires an instance of the enclosing class.
C. A static inner class has no reference to an instance of the enclosing class.
D. A static inner class has access to the non-static members of the outer class.
E. Static members of a static inner class can be referenced using the class name of the static inner class.
多项选择题
A. void setVar (int a, int b, float c){ x = a; y = b; z = c; }
B. public void setVar(int a, float c, int b) { setVar(a, b, c); }
C. public void setVar(int a, float c, int b) { this(a, b, c); }
D. public void setVar(int a, float b){ x = a; z = b; }
E. public void setVar(int ax, int by, float cz) { x = ax; y = by; z = cz; }