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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)
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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)
0 like 0 dislike
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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