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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)
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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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