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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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