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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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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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