Special Structure

import java.util.Scanner;

public class SpecStruct {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Please enter base value: ");
        int base = sc.nextInt();
        for(int i = 1; i <= base; i++) {
            for(int j = 1; j <= i; j++) { // Loop for printing left triangle
                System.out.print("*");
            }
            for(int k = 0; k < (base-i)*2; k++) { // Loop for printing spaces
                System.out.print(" ");
            }
            for(int j = 1; j <= i; j++) { // Loop for printing right triangle
                System.out.print("*");
            }
            System.out.println(""); // moving to next line
        }
    }
}