0 like 0 dislike
5k 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 | 5k 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:172.69.17.67
©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
| 4.9k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.3k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 3.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users