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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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