0 like 0 dislike
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 | 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:172.69.7.224
©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
| 3k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 2.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users