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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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