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Java Program to check Prime number or not prime

*Let's see the prime number program in java. In this java program,
we will take a number variable and check whether the number is prime or not.
*/
/* Prime Number Program in Java
Prime number in Java: Prime number is a number that is greater than 1 and divided by 1 or itself only. In other words, prime numbers can't be divided
by other numbers than itself or 1.


For example 2, 3, 5, 7, 11, 13, 17.... are the prime numbers.*/


import java.util.Scanner;
public class Prime1{   
 public static void main(String args[]){   
  int i,x=0,flag=0; 
   Scanner sc=new Scanner(System.in); 
   
   System.out.println("Enter your Number"); 
   int n=sc.nextInt(); 
  x=n/2;     
  if(n==0||n==1){ 
   System.out.println(n+" is not prime number");     
  }else{ 
   for(i=2;i<=x;i++){     
    if(n%i==0){     
     System.out.println(n+" is not prime number");     
     flag=1;     
     break;     
    }     
   }     
   if(flag==0)  { System.out.println(n+" is prime number"); } 
  }//end of else 
}   
} 


Output:-  Enter your Number
3
3 is prime number

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