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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)
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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//

// * * * ***

// ** **

//

// ** * ** 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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