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

1 vote233 views1 answer
How to create an array without knowing the size java
Java
0 vote242 views1 answer
Mp3 player Java
Java
0 vote251 views1 answer
Android studio Toast usage
Java
0 vote244 views1 answer
Spinner get items
Java
1 vote236 views1 answer
Java calculate fps from thread
Java
0 vote200 views1 answer
Jpa store enum as string
Java
0 vote244 views1 answer
Float to bytes java
Java
0 vote231 views1 answer
Identifier in java
Java
0 vote237 views1 answer
Kkih
Java
0 vote238 views2 answers
Fixed length array powershell
Java