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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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Hidden content!
#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)
0 like 0 dislike
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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