Printing prime numbers in java

import java.util.Scanner;
public class Main
{
   public static void main (String[] args)
   {		
      Scanner scanner = new Scanner(System.in);
      int i =0;
      int num =0;
      //Empty String
      String  primeNumbers = "";
      System.out.println("Enter the value of n:");
      int n = scanner.nextInt();
      scanner.close();
      for (i = 1; i <= n; i++)  	   
      { 		 		  
         int counter=0; 		  
         for(num =i; num>=1; num--)
         {
	    if(i%num==0)
	    {
		counter = counter + 1;
	    }
	 }
	 if (counter ==2)
	 {
	    //Appended the Prime number to the String
	    primeNumbers = primeNumbers + i + " ";
	 }	
      }	
      System.out.println("Prime numbers from 1 to n are :");
      System.out.println(primeNumbers);
   }
}

Source: beginnersbook.com

Similar codes

0 vote190 views1 answer
Java digit in number
Java
0 vote196 views3 answers
How to get multiple integer input in java
Java
0 vote192 views1 answer
Httpsession vs cookie servlet
Java
0 vote201 views1 answer
Java calendar add minutes
Java
0 vote227 views2 answers
Java program to find the sum of all even numbers from 1 to 10
Java
0 vote214 views2 answers
Android httpurlconnection post multipart/form-data
Java
0 vote175 views1 answer
Jsp import
Java
1 vote177 views2 answers
String comparison using == in java
Java
0 vote140 views1 answer
Android back button not close app
Java
1 vote173 views2 answers
Format localdate java
Java