Pattern.java

import java.util.Scanner; 
public class MainClass
{
    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);

        //Taking rows value from the user

        System.out.println("How many rows you want in this pattern?");

        int rows = sc.nextInt();

        System.out.println("Here is your pattern....!!!");
        
        for (int i=1; i<= rows ; i++)
        {
            for (int j = i; j < rows ; j++) {
                System.out.print(" ");
            }   
            for (int k = 1; k <= (2*i -1) ;k++) {
                if( k==1 || i == rows || k==(2*i-1)) {
                    System.out.print("*");
                }
                else {
                    System.out.print(" ");
                }
            }
            System.out.println("");
        }

        //Close the resources
        sc.close();
    }
}