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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)
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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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