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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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