Prime number till "n".java

import java.util.Scanner;

/**
 *
 * @author Niloy
 */
public class Main {

    public static void main(String[] args) {
        
        int n;
        
        Scanner input = new Scanner(System.in);
        
        System.out.print("Enter the value : ");
        
        n = input.nextInt();
        
        boolean[] array = new boolean[n+1];
        
        for(int i=0;i<n+1;i++)  {
            array[i] = true;
        }
        
        for(int i=2;i<(n+1)/2 ; i++)    {
            if(array[i]==true)  {
                for(int j=i+i;j<n+1;j+=i)   {
                    array[j]=false;
                }
            }
        }
        
        for(int i=2;i<n+1;i++)  {
            if(array[i]==true)  {
                System.out.println(i + "\t");   
            }
        }
    }
}