单项选择题
Which line contains a constructor in this class definition?()
public class Counter { // (1)
int current, step;
public Counter(int startValue, int stepValue) { // (2)
set(startValue);
setStepValue(stepValue); }
public int get() { return current; } // (3)
public void set(int value) { current = value; } // (4)
public void setStepValue(int stepValue) { step = stepValue; } // (5) }
A.Code marked with (1) is a constructor
B.Code marked with (2) is a constructor
C.Code marked with (3) is a constructor
D.Code marked with (4) is a constructor
E.Code marked with (5) is a Constructor
相关考题
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单项选择题
Aninstancemember()
A.is also called a static member
B.is always a variable
C.is never a method
D.belongs to a single instance, not to the class as a whole
E.always represents an operation -
单项选择题
Anobjectis()
A.what classes are instantiated from.
B.an instance of a class.
C.a blueprint for creating concrete realization of abstractions.
D.a reference to an attribute.
E.a variable. -
单项选择题
Amethodis()
A.an implementation of an abstraction.
B.an attribute defining the property of a particular abstraction.
C.a category of objects.
D.an operation defining the behavior for a particular abstraction.
E.a blueprint for making operations.
