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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)
0 like 0 dislike
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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