Merge pull request codec-akash#20 from zeenayouhan/master

codec-akash · web-flow · commit df35ab68587f · 2020-10-01T11:12:01.000+05:30
Find prime number
diff --git a/PrimeNumber.java b/PrimeNumber.java
@@ -0,0 +1,29 @@
+import java.util.Scanner;  
+  
+import java.util.Scanner;  
+  
+public class PrimeExample3 {  
+  
+   public static void main(String[] args) {  
+       Scanner s = new Scanner(System.in);  
+       System.out.print("Enter a number : ");  
+       int n = s.nextInt();  
+       if (isPrime(n)) {  
+           System.out.println(n + " is a prime number");  
+       } else {  
+           System.out.println(n + " is not a prime number");  
+       }  
+   }  
+  
+   public static boolean isPrime(int n) {  
+       if (n <= 1) {  
+           return false;  
+       }  
+       for (int i = 2; i < Math.sqrt(n); i++) {  
+           if (n % i == 0) {  
+               return false;  
+           }  
+       }  
+       return true;  
+   }  
+}  
