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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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