Programme au java

import java.util.Scanner;

public static void maFunction(){
  System.out.println("veuillez saisir le nombre des lignes");
  Scanner scanner = new Scanner(System.in);
  int n = scanner.nextInt();
  for (int i = 0; i < n; i++){
    for (int j =0; j <i; j++){
      System.out.print(j%3+1);
    }
    System.out.println();
  }
}