C++ Using prime number & Constructor pro

Find Prime Number in C++

#include

#include

using namespace std;

class prime

{

 int a,k,i;

 public:

 prime(int x)

 {

 a=x;

 k=1;

 {

 for(i=2;i<=a/2;i++)

 if(a%i==0)

 {

 k=0;

 break;

 }

 else

 {

 k=1;

 }

 }

 }

 void show()

 {

 if(k==1)

 cout<<"\n"<

 else

 cout<<"\n"<

 }

};

int main()

{

 int a;

 cout<<"Enter the Number:";

 cin>>a;

 prime obj(a);

 obj.show();

 getch();

 return 0;

}

Output

Enter the Number:7

7 is Prime Number.

Copy Constructor in C++

#include

#include

using namespace std;

class Example        

{

    int a,b;

    public:

    Example(int x,int y)          

   {

    a=x;

    b=y;

    cout<<"\nIm Constructor";

    }

    void Display()    

   {

    cout<<"\nValues :"<

    }

};

int main()                

{

        Example Object(10,20);

        Example Object2=Object;

        Object.Display();

        Object2.Display();

        getch();

        return 0;

}

Output

Im Constructor

Values :10      20

Values :10      20

Namespace in C++

#include

#include

using namespace std;

namespace namespacefirst

{

  int value = 5;

}

namespace namespacesecond

{

  double value = 3.1416;

 }

int main ()

{

  cout << "namespacefirst value : " <

  cout << "namespacesecond value : "<

  return 0;

}

Output

namespacefirst value : 5

namespacesecond value : 3.1416

Simple Class Program in C++

#include

#include

using namespace std;

class person

{

public:

  string name;

  int number;

};

int main()

{

    person obj;

    cout<<"Enter the Name :";

    cin>>obj.name;

    cout<<"Enter the Number :";

    cin>>obj.number;

    cout << obj.name << ": " << obj.number << endl;

    getch();

    return 0;

}

Output

Enter the Name :Byron

Enter the Number :100

Byron: 100

Find Prime Number in C++

#include

#include

using namespace std;

class prime

{

 int a,k,i;

 public:

 prime(int x)

 {

 a=x;

 }

void calculate()

 {

 k=1;

 {

 for(i=2;i<=a/2;i++)

 if(a%i==0)

 {

 k=0;

 break;

 }

 else

 {

 k=1;

 }

 }

 }

 void show()

 {

 if(k==1)

 cout<<"\n"<

 else

 cout<<"\n"<

 }

};

int main()

{

 int a;

 cout<<"Enter the Number:";

 cin>>a;

 prime obj(a);

           obj.calculate();

 obj.show();

 getch();

 return 0;

}

Output

Enter the Number:10

10 is Not Prime Numbers.

Enter the Number:7

7 is Prime Number.