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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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//

// ** ** *

// *** *

//

// * * * 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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