Recursion Function Method in Data structure and Algorithm in Java

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Recursion Function/Method in Java

Any function can be Called from any other function. Even a function can call itself, this process is called Recursion.

Recursion Function/Method in Java

import java.util.*;
class Recursion {
	public static void main(String [] args){
		Scanner input = new Scanner(System.in);
		System.out.println("Enter the Number to Find Factorial");
		int n = input.nextInt();
		System.out.println("Factorial of Number is =" + fact(n));
		}
		static int fact(int n){
		if(n==1){
			return 1;
			}else{
				return n*fact(n-1);
				}
			}
	}

Recursion Function/Method in C++

Example 01:

#include<iostream>
#include<conio.h>
using namespace std;
void pakistan(void);
void england(void);
int main()
{
    cout<<"I am in Main"<<endl;
    pakistan();
    cout<<"Back in Main";
    getch();
}
void pakistan(void)
{
    cout<<"I love Pakistan"<<endl;
    england();
    cout<<"I am back in Pakistan"<<endl;
}
void england(void)
{
    cout<<"I am in England Function"<<endl;
    cout<<"Going to England"<<"\n";
    cout<<"I am Back toward Main"<<endl;
}

---

Example 01:

#include<iostream>
#include<conio.h>
using namespace std;
void pakistan(void);
void england(void);
using namespace std;
int main()
{
    system ("color 3F");
    cout<<"Welcome"<<"\n"
    pakistan();
    cout<<"Welcome Back to return"<<"\n";
    england();
    getch();
}
void pakistan(void)
{
    cout<<<"Hello Hassan"<<endl;
}
void england(void)
{
    cout<<"Welcome to England ";
}