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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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