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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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#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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