05-04 Lab exercise 3: Write class shape with width and height

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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
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27 Answers

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Hidden content!
* * * * *** * ***

using namespace std;

class Rectangle{
* * *** * * ** *** * **
** ** * * * *** ** ** * *** * *** ** *** * *** set_data(int n,int r);
** * ** ** **** * ** ***** *** * ** * ***** a;
** ** ** **** ** *** * *** ** ** ***** * **** b;
* * * * * ****** ***** * * * **** **** **** *** area();

};

void *** * * n,int r){
** ** ** **** ***** **
** * ** *** ** * ** **

}

int ******
**** * ** * ** * **** a*b;

}

class Triangle{
** ** * * * **** ** *** * *** *
*** * ** * * **** * * *** * * * ** ** area();
** * ** ** * * * * *** ***** ** ***** ** * set_data(int s,int t);
* *** ***** * ** * **** ******* * ** ** * c;
*** * ***** * ** **** ** * * ** ******* ** * d;

};

void *** * ** ** * s,int t){
** * * ** ** *** * * * ***
* **** ** * ** * *

}

int * ** **
* * *** **** * c*d/2;

}

int main (){
******** **** * * ** * * * rect;
**** * * * ** * *** tri;
** * * ** * * ** * ** ** * (5,3);
* * ** ** *** * * **** * ** * (2,5);
** * * * ** ** * * **** << rect.area() << ** **** * ** ** **** tri.area() << endl;
* ** * * ** * **** * 0;

}
answered by (-384 points)
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Hidden content!
#include<iostream>



using namespace std;




*** *** ** * * ** * * * rect
**** * ** ***** ** * * *
* * * * * * * ** *** *
* * * ** ** ** ** * * * ** * * * * a,b;
* * * * **** ******* * * *** * *** ** ** * * area();
* ** * * **** * **
**** ** ** * * tri
**** ** * ** ** * ** ** ** *
* ***** * * * * * * * ** *** * ** *** *
**** ** * * ********* * ** * * * *** ** * * *** a,b;
* * * ***** * * *** ** * *** ** *** * ** area();
* ** ** * ** ** * *
* **** *** ** * * ** * *** rect ::area()
** * ** ** ** ** *** *
* * ** * ** * *** * *  a*b;
**** * * *** * * ***
* ** ***** * ** *** ** * tri ::area(){
******* ** ** **** *** ** ** ** * **  a*b/2;

}

int main ()

{
*** * * *** * ** ** * ** * t;
** * * * *** *** c;
**** * ** *** *** * * *** *
* *** * * **** * **** * ****
* ** *** * ** *** *
*** * * * * * * ** *** **
* * * **** * * * **** *** * ** << t.area()<< ";" << c.area() << endl;
* ** *** *** ** * **** 0;

}
answered by (-249 points)
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Hidden content!
#include ** ******

using namespace std;



class Rectangle

{

private:
* **** ***** *** ** * * wid,hei;

public:
*** * ** *** * * ** ** * set_data(int a ,int b)
***** ** ** *** * ****
* * ** * *** ** * ** ** * ***** * * ** ** *** ***
*** * * * *** ** ** ** * ** **** * **
* * ** * * * * * **** * **
*** * *** * * **** * **** ** area(void)
** ** * ******
******* * ** * * ** ** *** * ****** * ** *** wid*hei;
*** * ** **** *** ** *



};

class Triangle

{

private:
* ** ** * *** ** ** * *** ** wid,hei;

public:
* * **** * **** * * set_data(int a ,int b)
* *** ** * * * **
** * * ** ** ** * * **** ** ** * *** * ***
* * *** * * *** ** * * ** * *** *
*** ** *** * ** ** *
*** * * ****** * ** ** area(void)
*** *** * * ** ** **** ** *
**** **** * * * * * * * *** *** * * ** *** *** wid*hei/2;
** * * * * * *** * * ** *





};





int main()

{
*** *** ** *** * * * ** * ** * rect;
*** *** ** ***** * *** ** * *** tri;
** * * * ** * ** * * * * ** ** ** * ** (5,3);
*** *** *** ** ** * * ***** ***** (2,5);
** * * * * * ** * ** *** **** * * << rect.area() * ** ** ** * * *** * *** tri.area() << endl;
* * * * * * ** *** 0;

}
answered by (0 points)
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Hidden content!
#include * * * **



using namespace std;



class shape

{
* ** ** * ** * *
*** * * **** * ** *** *** set_data (int x, int y)
* * * ***** ** *
* ** *** *** * * * * * *** *** * * * = x;
**** ***** ** * * **** ** ** **** * ** * ** = y;
* * * * * ** * *** *
** * *** ** * * * * *** width, height;



};



class Rectangle : public shape

{
* ** * * * * ** *** ***
* *** * * ** **** * * * area ()
***** ** * * * ******* * * *
* *** *** * ** * * * * ** * * *** * *** * * ** ** ** * *** ** ** a;
* * * **** ** ** ***** ** ** * * ** * **** * * * * * * **** = width * height;
** ** * **** * * * ** ** ** * ** *** ******* * **** ** ****** ** * a;
******* ** ******* * * ** ** *** * * ** * ***



};



class Triangle : public shape

{
** * ** **** *** * *
* *** ** * ******** * *** area()
* *** ***** **** * * * ** *
** * ***** ****** **** ** * * * ** * * ** *** * ** a;
* *** *** ** *** ** ** * * * * * * * ** = .5 *width *height;
* * * *** * * ** * *** ** *** *** *** *** * ** a;
* ****** * * ** * **** *

};

int main (){


* * * * ***** * rect;
* **** * * **** * * **** tri;
* ****** *** * ** ** * ** (5,3);
* * *** *** * * *** ** (2,5);
** *** ***** * * ** * * ** << rect.area() << *** * * << tri.area() << endl;


*** ** * * ** ** *** 0;

}
answered by (5.9k points)
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Hidden content!
#include<iostream>

using namespace std;



class Rectangle{
**** *** *** ** * * **** width_value,height_value;
** * * ****** * ** **
*** ** **** * ***** * ***** *** * *** ** **** * * * * v1,int v2){
** * *** * * * * * **** ** * ** * *** * * * ** *** * * ** *** * * **
* * ** *** ** * * * ** * ** * *** ** ** * ** * ** * * * ** * * **** ** *    
*** *** ***** **** * ********** * * ** * *
* * ***** *** * * * * * * * ** * * ********* ** area(){
** *** * * * ** * * * * ***** **** * ***** * ** ** *** * * * ** ** ** (width_value*height_value);
** * * ** * * *** * ** ** ** ** * *
* * * * ** * * * *

};



class Triangle{
** *** ********* ** * ********
* * ** ** ** * * ** * *** ** * * ** * width_value,height_value;
*** * * ***** * * * *
*** * **** * * * ** * ** ** ** * * ****** v1,int v2){
****** *** **** ****** **** * * ** ** ***** * ***** * * ******* ** *** * ** **
* ** ** * ** ** ******* ***** *** * * * ** ** ***** **    
* * *** *** * * *** ** * * *** **** * ** *
*** * *** * * * * * ** * ** * * *** *** ****** area(){
*** * **** ** **** ** *** **** * * ** ** ** * * * ** * (width_value*height_value)/2;
******** ******* * * * * ** * * * ** ****

};



int main (){


**** * * * * ******* ** rect;
*** **** ******* * ** ** ** tri;
** * *** ** *** * * (5,3);
** ** ***** **** ** ** * (2,5);
* * ** * ** * ** ** * * * << rect.area() << ";" << tri.area() << endl;
******* ** * * *** *** * 0;

}
answered by (-412 points)
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 (5.2k points)
0 like 0 dislike
Hidden content!
#include ** * * ** ***

using namespace std;

class Rectangle

{

public:
* **** * * * * ** ** * * i,j;
** * * * ** * * set_data(int a,int b)
** * ** * ** ** * * *
* * * * * ** ** * ** ** * * ** ***** *
***** ** * * * ** * *** ****** * ***** * ***
* * * **** *
** * ** * * **** *** * * area()
* ****** *** ******** *** **
* * ** ** * ** ** * * *** ** *** * *** i*j;
* ** * ** ** * * * **

};

class Triangle

{

public:
* *** ** * * * * ** * ** i,j;
* * **** * ** * * * * * set_data(int a,int b)
* * *** ** *** *** * *
* *** * * ****** ***** ** * ** * *** ** **
* * * * * * *********** * * ** ** *** ** * *
* ** ** * ** ** *
* ***** **** * ** * ***** * area()
* *** *** * *** * ****** **
*** * ***** * * *** *** * ** ** * ** *** *** * i*j/2;
* * * * * * ** * ** **

};



int main()

{


** **** * ****** ***** * rect;
* ******** ** * * * *** * * tri;
* * **** * ***** ** * * ***** (5,3);
* * ** * ********* * * **** **** (2,5);
** * ****** * *** ** ** << rect.area() << * ****** ** * << tri.area() << endl;
* *** ** *** *** * * * * *** 0;

}
answered by (0 points)
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