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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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