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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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