write a Java program

Problem Description: Design a class named Triangle that extends Geometricobject. The class contains: Three double data fields named side1, side2, and side 3 with default values 1.0 to denote three sides of the triangle. A no-arg constructor that creates a default triangle. A constructor that creates a triangle with the specified side1, side2, and side3. The accessor methods for all three data fields. A method named getArea(), that returns the area of this triangle. A method named getPerimeter() that returns the perimeter of this triangle. A method named toString(). that returns a string description for the triangle. For the formula to compute the area of a triangle, The tostring.(). method is implemented as follows: return "Triangles side 1=+ side + " side 2=+ side 2+ " side 3=+ side3: 1. Draw the UML diagram that involves the classes Iriangle and GeometricObject. 2. Implement the class. 3. Write a test program that creates a Triangle object with sides 1,1.5,1, color yellow and filled true, and displays the area, perimeter, color, and whether filled or not