Prime number program in java

Java program to check whether given number is prime number or not





import java.io.*;




class Test {

     public static void main(String[] args) throws IOException {

          int num,i,count=0;

          System.out.println("Enter a number");

          BufferedReader br=new BufferedReader(new InputStreamReader (System.in));

          num=Integer.parseInt(br.readLine());