S1P2

Write a program to find whether the number is prime or not.

 class S1P2_Prime  
 {  
      public static void main(String args[])  
      {  
           int num = 17,flag=1;  
           for(int i=2;i<=num/2;i++)  
           {  
                if(num%i==0)  
                {  
                     flag=0;  
                     break;  
                }  
           }  
           if(flag == 1)  
           {  
                System.out.println(num + " is Prime Number");  
           }  
           else  
           {  
                System.out.println(num + " is not Prime Number");  
           }            
      }  
 }  

Output:

   
 E:\Java>javac S1P2_Prime.java  
   
 E:\Java>java S1P2_Prime  
 17 is Prime Number  
   
 E:\Java>