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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)
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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