编写一个名为Octagon的类,它继承自GeometriObject类并实现Comparable和Cloneable接口
时间: 2024-02-05 20:12:51 浏览: 26
下面是Octagon类的示例代码:
```java
public class Octagon extends GeometriObject implements Comparable<Octagon>, Cloneable {
private double side;
public Octagon() {
this(1.0);
}
public Octagon(double side) {
this.side = side;
}
public double getSide() {
return side;
}
public void setSide(double side) {
this.side = side;
}
public double getArea() {
return (2 + 4 / Math.sqrt(2)) * side * side;
}
public double getPerimeter() {
return 8 * side;
}
@Override
public int compareTo(Octagon o) {
if (this.getArea() > o.getArea()) {
return 1;
} else if (this.getArea() < o.getArea()) {
return -1;
} else {
return 0;
}
}
@Override
public Octagon clone() throws CloneNotSupportedException {
return (Octagon) super.clone();
}
}
```
该类继承了GeometriObject类,实现了Comparable和Cloneable接口。它具有一个名为side的私有变量,表示八边形的边长。它还实现了GeometriObject类的getArea()和getPerimeter()方法,分别用于计算八边形的面积和周长。此外,它还实现了Comparable接口的compareTo()方法,用于比较两个八边形的面积大小。最后,它还实现了Cloneable接口的clone()方法,用于创建八边形的副本。