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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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Hidden content!
//

// ** * ** *

// ** * **

//

// ** * * * * 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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