Java 143

Project: The Triangle Class Problem Description: Design a class named Iriangle that extends GeometricObject. The class contains: . Three double data fields named side1, side2, and side3 with default values Q 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. The toString) method is implemented as follows: return "Triangle: side1-"side1 + "side2-"side2+ " side3-"side3