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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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#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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