JAVA

Programming Project 11.1 Programming Fundamentals II - Dallas College

Instructions:

Note: this assignment is based on Exercise 11.1 from your eTextbook on Revel

The GeometricObject class contains:

• One String data field named color. • One Boolean data field named filled. • Accessor methods for these fields.

Design a class named Triangle that extends GeometricObject. The class contains:

• Three double data fields named side1, side2, and side3 with default values 1.0 to denote three sides of a 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 3 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 formula to compute the area of a triangle is:

area =√𝑠(𝑠 − 𝑠𝑖𝑑𝑒1)(𝑠 − 𝑠𝑖𝑑𝑒2)(𝑠 − 𝑠𝑖𝑑𝑒3) where: s = (side1 + side2 + side3) / 2;

The toString() method is implemented as follows:

return "Triangle: side1 = " + side1 + " side2 = " + side2 + " side3 = " +

side3;

Write a test program that prompts the user to enter three sides of the triangle, a color, and a Boolean value to indicate whether the triangle is filled. The program should create a Triangle object with these sides and set the color and filled properties using the input. The program should display the area, perimeter, color, and true or false to indicate whether it is filled or not.

Programming Project 11.1 Programming Fundamentals II - Dallas College

Sample program run: