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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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