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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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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)
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)
0 like 0 dislike
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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