for语句输出三角形

public class yuju {

    public static void main(String[] args) {
    
         for (int i= 0; i<10; i++)
            {
                 for (int j=0; j<=i;j++)
                 {
                     System.out.print("*");
            }
                System.out.println();
            }
         

            for (int i=0;i<10;i++)
            {
           for (int j=8;j>=i;j--)
           {
               System.out.print("*");
           }
           System.out.println();
            }

    }

}