Static Data Member and Static Member Functions in C++ | Static Variables & Methods in C++ OOPS

                In this post, we will see Static Data Member and Static Member Functions in C++ | Static Variables & Methods in C++ OOPS  

Program Code: (static1.c)

#include<stdio.h>

void counter()

{

static int x=0;

x=x+1;

printf("Value of x=%d\n",x);

}

int main()

{

counter();

counter();

counter();

}

Program Code: (static1.cpp)

#include<iostream>

using namespace std;

void counter()

{

static int x=0;

x=x+1;

cout<<"Value of x="<<x<<endl;

}

int main()

{

counter();

counter();

counter();

}

Program Code: (static2.cpp)

#include<iostream>

using namespace std;

class Student

{

public:

void counter()

{

static int x=0;

x=x+1;

cout<<"Value of x="<<x<<endl;

}

};

int main()

{

Student s1,s2,s3;

s1.counter();

s2.counter();

s3.counter();

}

Program Code: (static3.cpp)

#include<iostream>

using namespace std;

class Student

{

public:

static int x;

public:

void counter()

{

x=x+1;

cout<<"Value of x="<<x<<endl;

}

};

int Student::x=4;

int main()

{

Student s1,s2,s3;

s1.counter();

s2.counter();

s3.counter();

cout<<"Value of x="<<Student::x<<endl;

}

Program Code: (static4.cpp)

#include<iostream>

using namespace std;

class Student

{

private:

static int x;

int y=4;

public:

void counter()

{

x=x+1;

cout<<"Value of x="<<x<<endl;

}

static void getCount()

{

cout<<"Total number of students="<<x<<endl;

//we can not use non static variable of class inside static function

//cout<<"The value of y="<<y<<endl;

int z=5;

//we can define non static variable inside static function

cout<<"The value of z="<<z<<endl;

Student s;

//we can call non static function inside static function

s.counter();

}

};

int Student::x;

int main()

{

Student s1,s2,s3;

s1.counter();

s2.counter();

s3.counter();

Student::getCount();

} 

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