Project 15A - Math Application package: proj15A

Classes: Main, Circle, Rectangular

Using your new knowledge of methods and classes create a program with an interface. The program must allow a user to enter values and calculate: Areas, Perimeters, Surface Area, and Volumes for circular and rectangular shapes.

The program must have three classes. A main class, circle class and a rectangular class.

Submit all code one after the other as text into Canvas in the following order.

• main. class
• circle. class
• rect. class

I have it all done just need to finish this code

package math;

import java. util. Scanner;

public class Main
{

public static void main(String[] args)// main method
{
Scanner nScan = new Scanner(System. in);
DecimalFormat mf = new DeciamlFormat("0.0");
Circle cir1 = new Circle(0,0);
Rectangle rec1 = new Rectangle (0,0,0);

//variables
boolean runProg = true;
int choice =0;

while(runProg)
{
System. out. print("Math calculator 3000 ver1");
System. out. print("choose a mode. \n"
+ "1 circle mode \n"
+ "2 Rectangle mode \n"
+ "3 End program");
choice = nScan. nextInt();

if(choice==1) //circle mode
{

}

else if(choice == 2) //Rectangle Mode
{

}

else if(choice == 3) //Program Shutdown
{

}

else
{
System. out. println("You may only choose 1-3. Try again.");
}

}

nScan. close();
}

}

A simple php code for the following is given below:

Explanation:

interface Calculate {

 public function area($lenght,$width);

 public function perimeter($length,$width);

 public function surfaceArea($length_side_1,$length_side_2);

 public funcction volume($length, $width, $height):

}

interface Calculate2 {

 public function area($raidus);

 public function perimeter($radius);

 public function surfaceArea($radius);

 public funcction volume($radius):

}

Class Mian{

width=please Enter the value of width

height=please Enterr the value of height

length=please enter the value of length

lenght2=please enter the value of lenth of side 2

ridus= please enter the value of radius

    Circle = new circle()

    Rectangle = new rectangle()

}

Class Circle implements Calculate2{

public function area(){

area= pi*r

return area

}

public function perimeter(){

perimeter=2*pi*r

return perimeter

}

public function surfaceArea(){

surfacearea= pi*r*r

}

public function volume(){}

          area=area()

   volume=area*height

      return volume

}

Class Rectangle implements Calculate{

public function area(lenght,width){

 area= length * width

 return area

}

public function perimeter(lenght,width){

          perimenter=2(lenght+width)

          return perimeter

}

public function surfaceArea(length_side_1, withd right place){}

       surface_area 2*length_side_1  f*  length_side_2_

public function volume(){}

public surface volume(length,width,height)

 volume= length * width * height  

 return volume

}

enter

explanation:

that is my answer.

brainliest .

it can either be 2. or 4. : ) tell me if i'm wrong or right