Instructions: Write a Java program that has a single module with two classes:

A public class that contains the main method, which does the following:

a$.$ Creates a Triangle object, triangle$1,$ using the default constructor

b$.$ Creates a Triangle object, triangle$2,$ using these values: $3,4,5$

c$.$ Gets the perimeter and area of triangle $1$ using the corresponding methods

and prints them out, using $3$ decimals for the area

d$.$ Gets the perimeter and area of triangle$2$ using the corresponding methods

and prints them out, using $3$ decimals for the area $2)$ A class named

Triangle, which contains:

a$.$ Three integer data fields named side$1,$ side$2$ and side$3-$ the sides of the

triangle

b$.$ A no$-$arg constructor that creates a default triangle where all sides are of

length $1.$

c$.$ A constructor that takes $3$ integers, each corresponding to a side in the

triangle.

d$.$ Setter and Getter methods for the length of each side of the triangle

e$.$ A method named getPerimeter$()$ that returns the perimeter of the triangle

as an integer

f$.$ A method named getArea$()$ that returns the area of the triangle as a

double using the methodology described in this website: Area of Triangle

with $3$ sides.

Sample run:

triangle$1$ perimeter is $3,$ area is $0\mathrm{.}433$

triangle$2$ perimeter is $12,$ area is $6\mathrm{.}000$