Go Program to Print Hollow Inverted Star Pyramid Pattern

Write a Go program to print the hollow inverted star pyramid pattern using for loop.

package main

import "fmt"

func main() {

	var i, j, k, row int

	fmt.Print("Enter Hollow Inverted Pyramid Pattern Rows = ")
	fmt.Scanln(&row)

	fmt.Println("Hollow Inverted Star Pyramid Pattern")

	for i = row; i > 0; i-- {
		for j = 1; j <= row-i; j++ {
			fmt.Printf(" ")
		}
		for k = 1; k <= i*2-1; k++ {
			if i == 1 || i == row || k == 1 || k == (2*i)-1 {
				fmt.Printf("*")
			} else {
				fmt.Printf(" ")
			}
		}
		fmt.Println()
	}
}
Go Program to Print Hollow Inverted Star Pyramid Pattern

This Go example prints the hollow inverted pyramid pattern of a given character.

package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {

	reader := bufio.NewReader(os.Stdin)

	var i, j, k, row int

	fmt.Print("Enter Hollow Inverted Pyramid Pattern Rows = ")
	fmt.Scanln(&row)

	fmt.Print("Character to Print in Hollow Inverted Pyramid = ")
	ch, _, _ := reader.ReadRune()

	fmt.Println("Hollow Inverted Pyramid Pattern")

	for i = row; i > 0; i-- {
		for j = 1; j <= row-i; j++ {
			fmt.Printf(" ")
		}
		for k = 1; k <= i*2-1; k++ {
			if i == 1 || i == row || k == 1 || k == (2*i)-1 {
				fmt.Printf("%c", ch)
			} else {
				fmt.Printf(" ")
			}
		}
		fmt.Println()
	}
}
Enter Hollow Inverted Pyramid Pattern Rows = 14
Character to Print in Hollow Inverted Pyramid = #
Hollow Inverted Pyramid Pattern
###########################
 #                       #
  #                     #
   #                   #
    #                 #
     #               #
      #             #
       #           #
        #         #
         #       #
          #     #
           #   #
            # #
             #

About Suresh

Suresh is the founder of TutorialGateway and a freelance software developer. He specialized in Designing and Developing Windows and Web applications. The experience he gained in Programming and BI integration, and reporting tools translates into this blog. You can find him on Facebook or Twitter.