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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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** ******
** * ***



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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** * **** * **



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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* *** ** *** *

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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