0 like 0 dislike
1k 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 | 1k 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:172.70.130.203
©2016-2024

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
| 940 views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 677 views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 854 views
12,783 questions
183,443 answers
172,219 comments
4,824 users