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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)
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)
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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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