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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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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)
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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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