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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)
0 like 0 dislike
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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