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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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Hidden content!
//

// * *

// * * *

//

// * ** * ****** 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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