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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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#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)
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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//

// * * *

// ** * * * **

//

// ** ** 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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