(三角形类)设计一个扩展自抽象类 Geometricobject 的新的Triangle类。绘制Triangle类和Geometricobject类的UML 图并实现Triangle类。编写一个测试程序，提示用户输入三角形的三条边、一种颜色以及一个表明该三角形x下填充的布尔值。程序应该根据用户的输入,使用这些边以及颜色和是否填充的信息，创建一个 Triangle 对象。程序应该显示面积、周长颜色以及真或者假来表明是否被填充。

好的，请稍等一下，我会根据您的要求进行编写。

首先是 Geometricobject 类的 UML 图：

+------------------------+
|    Geometricobject      |
+------------------------+
|+color: String           |
|+filled: boolean         |
|+dateCreated: java.util.Date|
+------------------------+
|+Geometricobject()       |
|+Geometricobject(color: String, filled: boolean)|
|+getColor(): String      |
|+setColor(color: String): void|
|+isFilled(): boolean     |
|+setFilled(filled: boolean): void|
|+getDateCreated(): java.util.Date|
|+toString(): String      |
|+getArea(): double       |
|+getPerimeter(): double  |
+------------------------+

接下来是 Triangle 类的 UML 图：

+------------------------+
|        Triangle         |
+------------------------+
|-side1: double           |
|-side2: double           |
|-side3: double           |
+------------------------+
|+Triangle()              |
|+Triangle(side1: double, side2: double, side3: double, color: String, filled: boolean)|
|+getSide1(): double      |
|+setSide1(side1: double): void|
|+getSide2(): double      |
|+setSide2(side2: double): void|
|+getSide3(): double      |
|+setSide3(side3: double): void|
|+getArea(): double       |
|+getPerimeter(): double  |
+------------------------+

下面是 Triangle 类的实现：

public class Triangle extends Geometricobject {
    private double side1;
    private double side2;
    private double side3;

    public Triangle() {
    }

    public Triangle(double side1, double side2, double side3, String color, boolean filled) {
        super(color, filled);
        this.side1 = side1;
        this.side2 = side2;
        this.side3 = side3;
    }

    public double getSide1() {
        return side1;
    }

    public void setSide1(double side1) {
        this.side1 = side1;
    }

    public double getSide2() {
        return side2;
    }

    public void setSide2(double side2) {
        this.side2 = side2;
    }

    public double getSide3() {
        return side3;
    }

    public void setSide3(double side3) {
        this.side3 = side3;
    }

    @Override
    public double getArea() {
        double p = getPerimeter() / 2;
        return Math.sqrt(p * (p - side1) * (p - side2) * (p - side3));
    }

    @Override
    public double getPerimeter() {
        return side1 + side2 + side3;
    }
}

最后是测试程序：

import java.util.Scanner;

public class TestTriangle {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);

        System.out.print("Enter three sides of the triangle: ");
        double side1 = input.nextDouble();
        double side2 = input.nextDouble();
        double side3 = input.nextDouble();

        System.out.print("Enter the color of the triangle: ");
        String color = input.next();

        System.out.print("Is the triangle filled (true/false)? ");
        boolean filled = input.nextBoolean();

        Triangle triangle = new Triangle(side1, side2, side3, color, filled);

        System.out.println("The area of the triangle is " + triangle.getArea());
        System.out.println("The perimeter of the triangle is " + triangle.getPerimeter());
        System.out.println("The color of the triangle is " + triangle.getColor());
        System.out.println("The triangle is" + (triangle.isFilled() ? " filled" : " not filled"));
    }
}