Use java programming language Also you need to use this main method

Problem 1: ASCI Staircase (10 points) Using for-loops, develop an algorithm that returns a String formatted as a staircase using the character 'x' (lower case). The staircase should have the following properties O N steps going up from left to right The top step should have one , the second step from the top have two 'x's, the third step from the top should have three 'x's, ..., the bottom step should have N 'x's O Generally, the nth step from the top should have n 'x's Example output for N 10 Note: the underscores ("_") should be spaces ("") and the arrows (""should be replaced with carriage returns. I've included them here to draw attention to the fact that there should be spaces preceding the step. Your output has to exactly match the specifications to be considered correct. pubtic class Staircase inptements IPattera. t int N 10; public static void main(String[l args)f IPattern. obj new Staircase) Syatsn.gut Rrintla(obj.printNthItem(1e)); * Print the pattern for n-10 @Override public String printPattern(int n) I TODO Auto-generated method stub return null; print the 10th line of the pattern: @override public String printNthItem(int n) t // TODO Auto-generated method stub return null; * This changes the value of class variable N to arg. eoverride public void setParam(int arg) TODO Auto-generated method stub MacBook A esc F1 F2 F3