Need to figure out what is wrong with this code to produce this after entering any number:

JAVA CODE GIVEN:

import java.util.Scanner;

public class HollowD { public static void main(String[] args) { Scanner keyboard = new Scanner(System.in); int R = keyboard.nextInt(); int x = R - 1; int y = 1; for(int i = 1; i = x; j--) { System.out.print("$"); } for(int k = 1; k Enter the number of rows: 6