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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)
0 like 0 dislike
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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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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