在Java中从派生类调用基类构造函数

Question

我的课程如下：

public class Polygon  extends Shape{

    private int noSides;
    private int lenghts[];

    public Polygon(int id,Point center,int noSides,int lengths[]) {
        super(id, center);
        this.noSides = noSides;
        this.lenghts = lengths;
    }
}

正多边形是所有边都相等的多边形。正多边形的构造器应该是什么

public Regularpolygon extends Polygon{

//constructor ???
}

Answer 1

你的构造函数应该是

public Regularpolygon extends Polygon{

public Regularpolygon (int id,Point center,int noSides,int lengths[]){
super(id, center,noSides,lengths[]);

// YOUR CODE HERE

}

}