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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)
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)
0 like 0 dislike
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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