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Write class shape with width and height following a constructor that gives value to them.
Then define two sub-classes triangle and rectangle.
Those sub-classes can calculate the area of the shape area().
You need to follow the main() below. Please complete the program.

int main (){

    Rectangle rect;
    Triangle tri;
    rect.set_data (5,3);
    tri.set_data (2,5);
    cout << rect.area() << ";" << tri.area() << endl;
    return 0;
}

 

[Exercise] Coding (C) - asked in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited

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#include * * * *** *



using namespace std;



class shape  {
* * * **** * ** *
* * ** ** * ** * * * *** * * * * ** * set_data(int x, int y)
**** ** * ** **** * ** * ** *
** * * * ** ** * * * * ** * ******* ** = x;
* * * * *** * * * ****** * * **** ** * * ** * * = y;
** ** * *** ** ** * * ** ** **** *


** * * ******* ** ****** *
* ** **** * ****** * * ** * ** ** * * width;
* ******** ** * * * * * * height;

};



class Rectangle: public shape {
* ** * * *
* * ** * * * *** ** * * ***** * area() {
* ** * * *** * * *** ** * * * * ** *** * * *** ** (width * height);
*** **** * * *** * ** ** * ** **

};



class Triangle: public shape {
** * * **** ** *
***** ** *** ** ** ** ** ** * *** area() {
* ******* * * ** *** * * ** ** * * ** * * *** * ** * * (width * height / 2);
** * ** ***** ** ******* *

};



int main(void) {
*** * * * *** *** ** rect;
* ** ***** ** * * * tri;


* ** * ***** ** * * *** * 3);
** ** *** * **** ** 5);


**** * ** ****** * * *** ****** * rect.area() * ** * * *** * * * * ** tri.area() * ** * * endl;


* ** ******** ** * 0;

}
answered by (126 points)
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Hidden content!
#include * * *



using * * * std;



class Shape

{
*
** ** * * ** ***** * ** width, height;

public:
*** * ***** * ***** set_data (float a, float b)
*** ** *** ** *** * *
** **** ** * * ** ** * *** * *** * * * * = a;
* * ** ******* ** * ** ** * * * ** * * * * **** = b;
* *** *** * *****

};



class ** * public Shape

{

public:
* ** * ** ** * area ()
** * ** * * **** ***
*** *** *** * * * * **** * **** ****** (width * height);
* ** ** ** ** **

};



class public Shape

{
* **
**** *** * * **** * *** area ()
* ** * * *** *** * **
*** * * * * *** ** ** * ** * **** ** * ** * (width * height / 2);
********* * * ** * * * *

};



int main (){
** * ******* ***** ** ** **
**** ** ** * * rect;
* * ** * **** * * ** * * ** * tri;
** ** * * * * ** * *** *** * * * (5,3);
****** * * ****** **** *** * * * (2,5);
* * ** ** * * ** ** * * ** * ** ** * * * * * * ** * ** *** **** * * * endl;
*** * * *** ** ******* * 0;

}
answered by (-215 points)
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Hidden content!
#include *** ***** *****



using * * std;



class Shape

{
* * **
* *** ***** * * ***** * * width, height;

public:
* * ** * * * **** * set_data (float a, float b)
*** ***** * * *** *
* *** * * ****** ** * * * *** * * * * * *** * * ** = a;
* ** ***** * * ** * *** * ** * **** = b;
* ** ** * *** ***

};



class *** * public Shape

{

public:
** * * * * **** * * *** ** * area ()
* * *** *
*** * **** ** *** ** *** * *** * *** ** * * *** (width * height);
* * * * * *** *

};



class ** * public Shape

{
*
** ** ** * * * ** * *** area ()
** **** ****** *** ** ****
* ** ** **** * *** ** * * ** * * ** *** (width * height / 2);
** ** * *** * * *

};



int main (){
********* *
*** * **** * *** ** ** **** rect;
* * * ** tri;
* **** * ** * *** (5,3);
** * ** ** * ** * * *** ** (2,5);
* * *** ** * *** ** * * * ***** * * ** ** *** ***** * ** * *** * **** * endl;
** * ** **** *** * * * * ** 0;

}
answered by (-298 points)
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Hidden content!
#include ************ ***



using * *** std;



class Shape

{
***
* ** * *** * * * width, height;

public:
* ** * * ** * **** * set_data (float a, float b)
* ** *** ***
** ** ** ** ***** ****** **** ** * ** ** ** * = a;
* * * **** ** * * ** * * * * ** * ** * ** *** = b;
* ***** ** ** *** * **

};



class * public Shape

{

public:
* ** ** * * * * * *** area ()
** *** ***** * ** **
* **** * * *** * ** ** * * * * **** ** * * * (width * height);
* * * ** * * * *

};



class * * public Shape

{
*
* * * * ***** ** *** area ()
* ** *** *******
***** * * * *** *** * * ** *** * ** *** ** ** * * (width * height / 2);
* *** * * * * ** ** *

};



int main (){
* ** ** * * * ***
*** *** * ****** ** * rect;
* * * *** * ** * * * tri;
** ***** * * ** * ** ** * (5,3);
** * ** * ** ** * **** (2,5);
** * ** * ** *** * **** *** * * * * *** ** ** * **** * * * ***** * * * * endl;
** **** * ** * ** * * * *** 0;

}
answered by (237 points)
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Hidden content!
* *** * ** **** * *

using * * * std;



class ** **
** * * ** * ** * * *** *
** * * * ** *** ** * **** width;
** * ** ** * * * * ** height;
** * ** *** * * * ** *** ** * * * ** * * * height);
*** * * * * ** ** ******* area();

};



class **
** *** ** * **** ****
***** * * ******** *** * * width;
* * * ** * ***** ** **** height;
* * ** * * *** ***** * *** *** height);
*** ** * ** * * * * ** * ** * area();

};



void * * * * :: * * * swidth ,float * *
* *** * * * ***** ****** ** = swidth;
* ** ** * * * *** ** = *

}



float * * ** :: area(){
* *** **** * ** * *** * * * * * * * * (width * **

}



void * * :: * * ** * swidth ,float *
**** * ** * **** * *** * = swidth;
* * * * **** ** * * * * = ****

}



float Triangle :: area(){
* * ****** * * *** *** * *********** ***** * * ((width * *

}



int main (){
* * *** * ** *** * * ** * rect;
* *** * * ** * * * * tri;
* ** * * ** * * * * ** * (5,3);
*** * * * * * ** *** **** ** (2,5);
* * * ** ** * * * * * * * *** * ** *** * * *** * *** * *** * * ** * **** * ** * * * * endl;
* * * ** ** * ** *** * 0;

}
answered by (-136 points)
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Hidden content!
** ** ** **

using *** * std;



class *
*** **** * *** * * *
*** ** * * ****** ** ** ** width;
* *** * * *** ** * * * height;
** * ** * **** *** **** * *** * * height);
* * * ***** * * ** **** area();

};



class ***
**** * ** * * * **** * *
* ** ** *** ** * width;
* * ******** * ** * **** ** height;
* *** *** * *** ** *** ***** *** * ** * ** ***
** * * * ****** * area();

};



void * :: * ** ** swidth ,float *
* *** *** * * ** ** * *** * * = swidth;
* * * * ****** * = sheight;

}



float *** * :: area(){
** **** *** * *** ** * ***** * * ** * * * * * (width * * *

}



void * ** :: *** * * swidth ,float ** *
** * * * *** ** *** * = swidth;
** * * * ***** * * ** = sheight;

}



float Triangle :: area(){
** ****** ** * * * **** * ** * * *



int main (){
* * * ** * ** * ** rect;
* * * * **** * ** ** * * tri;
******* ** * **** *** * * ** ** * (5,3);
* *** ** * ** *** * * ** ** * (2,5);
* *** *** ** ** ** ** *** ** * * * ** ** * * ** * * * ** * ** * endl;
** ** *** * * * *** * ** ** *** 0;

}
answered by (-136 points)
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Hidden content!
** **** ** * ** * *
* * * * **** * **



using namespace std;



class Rectangle{

public:
* * * * *** *** * * ******** set_data(int H, int W){
*** * **** * ** ** * * * * ***** * * * = W;
* * * * ** * ** * ** *** * * ** * *** * = H;
* * ** ** *** * * * *
***** ** ** ** * ** area(){
* *** ** **** ** * ** * ***** * * * ***** * * ** ****
***** ** * * ** *



private:
** * ** ** **** ** * * * r_width;
* *** * ** * ** ** *** r_height;



};



class Triangle{

public:
* ***** ** ** ** * set_data(int H, int W){
* * ** * *** * * ****** ** ** * *** * * ** ** ** = W;
*** *** * *** *** * ** * *** ** ** ** * * = H;
** * * ** ***** **
** **** * * ** * * * area(){
* * * ** *** *** * ** ** * * * * * *** ** ** * * * *
** * ** **** * *

private:
* *** * * * * **** ***** t_width;
* ** *** ** ** * ** * t_height;

};



int main()

{
*** * ** * * * * **** * ** * rect;
* * * * **** *** * * ** * ** ** tri;
* ** **** * ** ** (5,3);
* * ** * *** ** * ** (2,5);
** * * * * * ** * * * rect.area() **** * * * **** << tri.area() << endl;
*** * ** **** * *** *** 0;

}
answered by (-368 points)
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Hidden content!
** ** * ** * ** ** **



using * * * std;



class ** {
* * * * ** ** * width, **
***** * * ****
* ** * *** ** * * ** * *** ****
** * ******* ***** * * area() * * *** * *

};



void * * * ** (int x, int y) {
*** * *** ** * **** = x;
** ** * *** ******* = y;

}



class * * {
** ***** ** * * **** * ** base, ***
** ****** * ** * *
* * ** * * * ** ** *** *
** *** * ** *** * ** ** * area() {return *** *

};



void *** **** ** (int x, int y) {
********** **** = x;
*** * * * * = y;

}



int main (){


* * * * *** ** **** * rect;
* ** ** ** * * **** * tri;
*** * * ** **** ** * ** (5,3);
* * * * *** * ** * * * ** * ** (2,5);
** * * * * * ** *** * ***** * *** * * * * *** * * * * * ***** ** * ******* ** ** * endl;
* ***** ** * * * ** **** * 0;

}
answered by (-218 points)
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//

// ** ** *** *

// * ** *

//

// * ** * ** ** by * on * * *

// * ** © 2017年 * All rights * * *

//


* *** * * *** *
* ** ******* *** *** *

#include *** * * **

using * * std;



class shape {

public:
** *** * ******** * * **** width, double height){
* * ** ** ** ** * * *** * * * ** *** *** = width;
* ** **** ** * * * * * *** * ** ** * *** * ** * = height;
* * * * **** * *



public:
* *** ****** * * *** * w;
******* **** ******* * * ** h;

};



class * ** public shape{

public:
* ** *** *** ** *** area(){
** ** * **** * * ** *** ** * * * ***** * *** **** * * *** *
*** ** * ** *** * *

};



class * *** public shape{

public:
** * ** ****** ** * *** ** area(){
** **** *** * * * ** * * ** * *** * ******** * ** ** * * ***
* * * * **** **** *

};



int main (){
*** ** * ***** * * * ***
*** ** *** * ** *** ** rect;
* * * ** * * * tri;
***** * * * * * * * * * * (5,3);
* * *** * * * * * ** * * * (2,5);
*** * ** * * *** * * * ***** *** * ** * * * ** * * ** * ** * *** * * * ** * * *** endl;
* ** *** * ** * * * *** * 0;

}
answered by (-368 points)
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Hidden content!
* ** *** * * **

using ** std;



class * *

{

public:
** * * * *** * * **** * * *** a,int b);
* *** *** * **** *** area();
* **** * * * * ** * ** a_,b_;

};



void * * *** * * * * a,int b)

{
* ** * *** **** ** *
** * ** ****** ** *

}



int ******

{
** **** * * *** ** * * ** **

}





class **

{
*
* ** * * * ** * ** * a,int b);
** * * *** * * ** ** *** * * area();
**** * ** * * * * ** a_,b_;

};



void * * *** ** a,int b)

{
** * * * ***** * ** *
** **** * * * ****

}



int * ** ** **

{
* *** * * * * * * ********* a_*b_;

}



int main ()

{
* *** * * * ** *** * * rect;
* * * * * * *** *** * **** tri;
** **** * ** *** ** (5,3);
* * ** ***** ***** * * * (2,5);
*** *** ** * * **** ** * * *** * * ******* ** ** * * *** ** ** * endl;
* * ** ** **** ** ** * 0;

}
answered by (-324 points)
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