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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)
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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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Hidden content!
//

// **** **** *

// * * ** *

//

// ** ***** * 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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