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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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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 (-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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