定义三角形类java

Question

不会做啊😭有没有帮帮忙，看不懂这个图，不知道该咋计算😭谁能来棒棒

Answer 1

public class Triangle {
//定义三个坐标
    private Point v1;
    private Point v2;
    private Point v3;
//包含三个参数的构造方法
    public Triangle(Point v1, Point v2, Point v3) {
        this.v1 = v1;
        this.v2 = v2;
        this.v3 = v3;
    }

    public double getDistance(Point p1, Point p2) {
        // 计算两个点之间的距离
        double dx = p1.getX() - p2.getX();
        double dy = p1.getY() - p2.getY();
        return Math.sqrt(dx * dx + dy * dy);
    }

//获取每条边长度的方法
    public double getSideA() {
        return getDistance(v2, v3);
    }

    public double getSideB() {
        return getDistance(v1, v3);
    }

    public double getSideC() {
        return getDistance(v1, v2);
    }

//获取周长，三边之和
public double getPerimeter() {
    return getSideA() + getSideB() + getSideC();
}
//根据边长判断三角形的类型
public String getTriangleType() {
    double sideA = getSideA();
    double sideB = getSideB();
    double sideC = getSideC();

    if (sideA == sideB && sideB == sideC) {
        return "equilateral";
    } else if (sideA == sideB || sideA == sideC || sideB == sideC) {
        return "isosceles";
    } else {
        return "scalene";
    }
}

   
}