https://www.w3schools.com/java/tryjava.asp?filename=demo_helloworld


enter code 


public class Main {
  public static void main(String[] args) {
    int hashsize = 17;
    
    String key = "your name";
    int hash1 = key.hashCode() % hashsize;
    int hash2 = hashsize - hash1;
    
    System.out.print("key=");
    System.out.println(key);
    
    System.out.print("hash1=");
    System.out.println(hash1);
    
    System.out.print("hash2");
    System.out.println(hash2);
  }
}