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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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#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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