0 like 0 dislike
3.9k 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 | 3.9k 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:172.70.80.170
©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
| 3.8k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.6k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users