Merge pull request codehouseindia#109 from TharinduRewatha/patch-1

codehouseindia · web-flow · commit 069f47ebe642 · 2020-10-10T01:07:01.000+05:30
Show_PrimeNumbers.java
diff --git a/Show_PrimeNumbers.java b/Show_PrimeNumbers.java
@@ -0,0 +1,42 @@
+//https://www.facebook.com/permalink.php?story_fbid=2750473708542571&id=100007399066161
+Subscribed by tharindu Rewatha
+
+class PrimeNumberDemo
+{
+   public static void main(String args[])
+   {
+      int n;
+      int status = 1;
+      int num = 3;
+      //For capturing the value of n
+      Scanner scanner = new Scanner(System.in);
+      System.out.println("Enter the value of n:");
+      //The entered value is stored in the var n
+      n = scanner.nextInt();
+      if (n >= 1)
+      {
+         System.out.println("First "+n+" prime numbers are:");
+         //2 is a known prime number
+         System.out.println(2);
+      }
+
+      for ( int i = 2 ; i <=n ;  )
+      {
+         for ( int j = 2 ; j <= Math.sqrt(num) ; j++ )
+         {
+            if ( num%j == 0 )
+            {
+               status = 0;
+               break;
+            }
+         }
+         if ( status != 0 )
+         {
+            System.out.println(num);
+            i++;
+         }
+         status = 1;
+         num++;
+      }         
+   }
+}
