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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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