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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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