Java Pyramid of Numbers

Java Pyramid of Numbers

class Pyramid{
    public static void main(String[] args){
     int x = 9;  
     for (int i = 1; i <= x; i++) {  
     for (int j = 1; j <= x - i; j++)  
     System.out.print("   ");  
     for (int k = i; k >= 1; k--)  
     System.out.print((k >=10) ?+ k : "  " + k);  
     for (int k = 2; k <=i; k++)  
     System.out.print((k>= 10) ?+ k : "  " + k);  
     System.out.println();  
    }  
  }
}

Thank you. But I keep don't understanding how the spaces between numbers are working

instead of using System.out.print with conditional, you could do this: this will allocate five spaces for the numbers.

class Pyramid{
    public static void main(String[] args){
     int x = 9;  
     for (int i = 1; i <= x; i++) {  
     for (int j = 1; j <= x - i; j++)  
     System.out.printf("%5s", "");  
     for (int k = i; k >= 1; k--)  
     System.out.printf("%5d", k);  
     for (int k = 2; k <=i; k++)  
     System.out.printf("%5d", k);  
     System.out.println();  
    }  
  }
}