Scope Resolution Operator vs this Pointer

The scope resolution pointer and 'the' this pointer are crucial to implementing the effective C++ program and designing the object-oriented processes during the software development agile life cycle methodology. The scope resolution operator helps the developer access the class members or the static entities. On the other hand, the 'this' pointer helps us with local object member variables with the same name.

C++ code

// Here we are writing down the C++ programming language code to demonstrate
// the concept of Scope Resolution Operator vs this pointer in C++
// where the code shows the parameters which are local and hides the 
// class members inside it!
#include <iostream>
using namespace std;

// the below code snippet helps us with creating the test class  
class Test {
	int a;

public:
	Test() { a = 1; }

	// here, the parameter 'a', which is local in nature, helps us with
	// hiding the member class 'a'!
	void func(int a) { cout << a; }
};

// The main driver code functionality starts from here. It helps us to 
// implement the concept Scope Resolution Operator vs this pointer in C++
int main()
{
    // this is the sample test object which we have implemented from class
	Test obj;
	int k = 3;
	obj.func(k);
	return 0;
	// end of the main driver code functionality
}

Output:

C++ code

// Here we are writing down the C++ programming language code to demonstrate
// the concept of Scope Resolution Operator vs this pointer in C++
// where the code shows the parameters which are local and hides the 
// class members inside it!
#include <iostream>
using namespace std;
// the below code snippet helps us with creating the test class  
class Test {
	int a;

public:
	Test() { a = 1; }

	// here, the parameter 'a', which is local in nature, helps us with
	// hiding the member class 'a'!

	void func(int a) { cout << this->a; }
};

// The main driver code functionality starts from here. It helps us to 
// implement the concept Scope Resolution Operator vs this pointer in C++
int main()
{
    // this is the sample test object which we have implemented from class
	Test obj;
	int k = 3;
	obj.func(k);
	return 0;
	// end of the main driver code functionality
}

Output:

C++ code

// Here we are writing down the C++ programming language code to demonstrate
// the concept of Scope Resolution Operator vs this pointer in C++
// where the code shows the parameters which are local and hides the 
// class members inside it! Also, show the local variables' access with 
// the same name

#include <iostream>
using namespace std;
// the below code snippet helps us with creating the test class  
class Test {
	static int a;

public:
	// here, the parameter 'a', which is local in nature, helps us with
	// hiding the member class 'a'! but it can be accessed using '::.''
	void func(int a) { cout << Test::a; }
};

// In C++ programming language, the static members must be explicitly 
// defined
// like the format given below!

int Test::a = 1;

// The main driver code functionality starts from here. It helps us to 
// implement the concept Scope Resolution Operator vs this pointer in C++
int main()
{
    // this is the sample test object which we have implemented from class
	Test obj;
	int k = 3;
	obj.func(k);
	return 0;
	// end of the main driver code functionality
}

Output:

C++ code

// Here we are writing down the C++ programming language code to demonstrate
// the concept of Scope Resolution Operator vs this pointer in C++
// where the code shows the parameters which are local and hides the 
// class members inside it!
#include<iostream>
using namespace std;
// the below code snippet helps us with creating the AB class
class AB {
   int x;
   public:
      AB() {
         x = 6;
      }
// here, the parameter 'x', which is local in nature, helps us with
	// hiding the member class 'x'!

   void print(int x) {
      cout<<"Hey! coder the number required is: " << this->x;
   }
};
// The main driver code functionality starts from here. It helps us to 
// implement the concept Scope Resolution Operator vs this pointer in C++

int main() {
    // this is the sample AB object which we have implemented from class
   AB ob;
   int m = 7 ;
   ob.print(m);
   return 0;
   // end of the main driver code functionality
}

Output: