0 like 0 dislike
6k 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 | 6k 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:104.23.197.94
©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
| 5.9k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.9k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users