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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)
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)
0 like 0 dislike
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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