0 like 0 dislike
3.6k 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 | 3.6k 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:172.70.179.166
©2016-2025

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
| 3.6k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.5k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 2.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users