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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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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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