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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)
0 like 0 dislike
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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