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:172.71.190.234
©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