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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)
0 like 0 dislike
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)
0 like 0 dislike
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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