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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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#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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