print prime number between 1 to 100 without for loop

 class Main {  

  public static void main(String args[]) { 

    System.out.println("Hello, world!"); 

    Main m =new Main();

    m.printPrimeNumber(100);

    m.printPrimeNumber1();

  }

  public void printPrimeNumber(Integer number) {

    if(number%2==0) {

      System.out.println("number is prime"+number);

    }

    number--;

    if(number>0){

        printPrimeNumber(number);

      }

  }

public void printPrimeNumber1() {

    System.out.println("Hello, world!"); 

  }

}