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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)
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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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