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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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