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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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Hidden content!
#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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