0 like 0 dislike
5.7k views

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

edited by | 5.7k views
0 0
Called for Help
0 0
Called for Help

27 Answers

0 like 0 dislike
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)
0 like 0 dislike
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)
0 like 0 dislike
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)
0 like 0 dislike
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)
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)
0 like 0 dislike
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)
0 like 0 dislike
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)
0 like 0 dislike
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)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.243.108
©2016-2026

Related questions

0 like 0 dislike
30 answers
[Exercise] Coding (C) - asked May 18, 2017 in C++
ID: 24769 - Available when: Unlimited - Due to: Unlimited
| 5.6k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.7k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users