0 like 0 dislike
3.7k 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 | 3.7k 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:172.70.80.185
©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