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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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#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)
0 like 0 dislike
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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