public class Mycircle {  public double radius;  public double diameter;  public void setRadius(double radius)  this.radius = radius;  this.diameter= radius * 2;  }  public double getRadius()   {  return radius;  }  Which statement is true?()  

A .  The Mycircle class is fully encapsulated. B .  The diameter of a given MyCircle is guaranteed to be twice its radius. C .  Lines 6 and 7 should be in a synchronized block to ensure encapsulation. D .  The radius of a MyCircle object can be set without affecting its diameter.

时间:2022-09-20 12:55:38 所属题库:SCJP程序员认证考试题库

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