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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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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 (-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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