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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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//

// ** * *

// *** *

//

// *** * *** 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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