For Java 11 and above :

public static void staircase(int n) {
// Write your code here
String s=" "; String hash = "#"; 
for(int i=1; i<=n; i++) {
    System.out.print(s.repeat(n-i));

    System.out.println(hash.repeat(i)); } }

In Python:

def staircase(n):
    base = n
    spaces = (base - 1)
    for b in range(1,base+1):
        print(' '*spaces +'#'*b)
        spaces -= 1

very nice information thanks

From a java perspective a solution would be like below:

    public static void staircase(int n) {
        IntStream.range(1, n+1).forEach(i -> {
            printChars((n-i), " ");
            printChars(i, "#"); 
            System.out.println("");
        });
    }
    
    public static void printChars(int count, String c) {
        for (int i = 0; i < count; i ++) {
           System.out.print(c);
        }
    }

Just like a staircase, some dirty pick-up lines have the perfect steps to get your attention. But hey, unlike those lines, I promise I’ll help clean up your space and leave it spotless! Let's make sure your staircase and home are as clean as your best pick-up lines are smooth!