Lab #14. Object-oriented programming

Lab #14.1. Class interval

(lab14.1.cpp)

#include <iostream>

using namespace std;

class interval

{

};

int main()

{

interval i; // sākumā dots intervāls 0..100

i.setX (1);

i.setY (-5.5); // pārbaude X<=Y!!!

i.setY (5.5);

i.setX (6); // pārbaude X<=Y!!!

cout << "Length: " << i.length() << endl;

cout << "Center: " << i.center() << endl;

return 0;

}

Given part of code that utilizes class interval. Design code for class interval.

Desired output:

Error: -5.5

Error: 6

Length: 4.5

Center: 3.25

Correct solution: lab14.1a.cpp.

Lab #14.2. Class triangle

(lab14.2.cpp)

#include <iostream>

using namespace std;

class triangle

{

};

int main ()

{

triangle a (3,4,5);

a.change (0,0,1); // katras malas izmaiņa

triangle b (2); // visas trīs malas aizpildās ar 2

triangle *c = new triangle (a); // aizpilda kā a

a.print (); // izdrukā 3,4,6

a.perimeter (); // izdrukā 13

c->change (2); // visu malu izmaiņa vienādi

c->perimeter (); // izdrukā 19

a.longest (); // garākā mala: izdrukā 6

b.longest (); // garākā mala: izdrukā 2

delete c;

return 0;

}

Given part of code that utilizes class triangle. Design code for class triangle.

Desired output:

3 4 6

13

19

6

2

Correct solution: lab14.2a.cpp.