Program to check whether number is prime or not in java

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





import java.io.*;
class prime{
  public static void main(String[] args)
 {
    int num,i;
try{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter number:");
num=Integer.parseInt(br.readLine());
  
     for (i=2; i < num ;i++ )
{
       int n = num%i;
     if (n==0)
{
         System.out.println("not Prime!");
         break;
     }
     }
     if(i == num)
{
       System.out.println("Prime number!");
     }
}catch(IOException e){}
  }
}


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Enter number:
19
Prime number!


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