0 like 0 dislike
5.3k 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 | 5.3k 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:104.23.197.65
©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
| 5.2k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.5k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users