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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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