Taking an integer n, divide n by 2 if n is even or multiply by 3 and add 1 if n is odd, repeat the process until n = 1

 

import java.util.Scanner;

public class Main{

public static void main(String args []){

Scanner sc = new Scanner(System.in);

System.out.println("Enter the number");

int i = sc.nextInt();

while(i != 1){

if(i%2 == 0){

i = i/2;

} else{

i = (i*3 + 1)/2;

}

}

System.out.println("Updated value of entered number is :"+i);

}

}