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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)
0 like 0 dislike
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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