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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)
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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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