?? finaltest.java
字號:
class Circle
{
private double rad;
public Circle(double r)
{
rad = r;
}
public void setRadius(double r)
{
rad = r;
}
public double radius()
{
return rad;
}
}
public class FinalTest
{
private static final Circle wheel = new Circle(5.0);
public static void main(String args[])
{
System.out.println("Radius of wheel is " +
wheel.radius());
wheel.setRadius(7.4);
System.out.println("Radius of wheel is now " +
wheel.radius());
}
}
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