单项选择题
Click the Exhibit button.
Which statement is true about the classes and interfaces in the exhibit？（）
A.Compilation will succeed for all classes and interfaces.
B.Compilation of class C will fail because of an error in line 2.
C.Compilation of class C will fail because of an error in line 6.
D.Compilation of class AImpl will fail because of an error in line 2.
相关考题
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单项选择题
Given： Which code， inserted at line 14， allows the Sprite class to compile？（）
A.Direction d = NORTH；
B.Nav.Direction d = NORTH；
C.Direction d = Direction.NORTH；
D.Nav.Direction d = Nav.Direction.NORTH； -
单项选择题
Given： What is the result？（）
A.hi hi
B.hi world
C.world world
D.Compilation fails.
E.An exception is thrown at runtime. -
多项选择题
Given： Which two classes use the Shape class correctly？（）
A.public class Circle implements Shape {private int radius；}
B.public abstract class Circle extends Shape {private int radius；}
C.public class Circle extends Shape {private int radius；public void draw（）；}
D.public abstract class Circle implements Shape { private int radius；public void draw（）；}
E.public class Circle extends Shape {private int radius；public void draw（） {/* code here*/}}
