[java] Ejercicio simple - pendiente de impresión

Imprimir
*
* *
* * *
* * * *

import java.util.Scanner;

public class demo {
    
    
    public static void main(String[] args) {
    
    
        Scanner scanner = new Scanner(System.in);
        System.out.print("请问你想要多少行:");
        int n = scanner.nextInt();
        for(int i = 0;i<n;i++){
    
    
            for (int d = i;d>=0;d--)
                System.out.print("*");
            for (int j = 0;j<=n-i;j++){
    
    
                System.out.print(" ");
            }
            System.out.println();
        }
    }
}