Check A Number is Prime Or Not

Below is my code:

import java.util.Scanner;

class prime
{
    public static void main(String s[]){
    int a,b;
    System.out.println("enter no. to check prime");
    Scanner scan=new Scanner(System.in);
    a=scan.nextInt();
   
   System.out.println("you entered "+a);
   
    for(b=2;b<=a-1;b++)
    {
if(a%b==0)
{
System.out.println("no. is not prime");
        break;
}
    }

    if(a==b)
    {
          System.out.print("prime");}
     }
} 

      Step 1:  After writing this in notepad save the file with the name followed by (.java) for eg: I saved it with Prime.java

Step 2 : Open command prompt 

Step 3 : Write javac Prime.java - Press Enter for compilation

Step 4 : Write java Prime for execution

Output:



Image 1.