java - Creating a Class, and writing methods for the STARS program -

i have assignment code methods of intro "stars" program. have of loops figured out print out designs, writing classes them tripped up. i'm still new programming , i'm sure there lots of silly mistakes in code.

here's document of stars output

public class stars {     scanner scan = new scanner(system.in);     public int rows;     public string part1, part2, part3, part4, part5;      public stars(int rows){     }      private static string part1(int rows){          (int = 0; < rows; i++) {             (int stars = 0; stars < rows; stars++) {                 system.out.print("*");             }             system.out.println("");         }         return " ";     }     private static string part2(int rows){          system.out.println("");         (int = 1; <= rows; i++) {             (int star = 1; star <= i; star++) {                 system.out.print("*");             }             system.out.println("");         }         return " ";      } 

public class stars{  public static void main(string[] args){     scanner scan = new scanner(system.in);     int rows = scan.nextint();     part1(rows);     part2(rows) }  private static string part1(int rows){   (int = 0; < rows; i++) {     (int stars = 0; stars < rows; stars++) {         system.out.print("*");     }     system.out.println("");  }  return " "; }  private static string part2(int rows){      system.out.println("");     (int = 1; <= rows; i++) {         (int star = 1; star <= i; star++) {             system.out.print("*");         }         system.out.println("");     }     return " ";     } } 

you don't need return type methods part1 , part2 because apparently returning empty string.