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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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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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