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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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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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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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