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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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#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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