Go Program to Print Hollow Inverted Right Triangle Star Pattern

Write a Go program to print the hollow inverted right angled triangle star pattern using for loop.

package main

import "fmt"

func main() {

	var i, j, row int

	fmt.Print("Enter Hollow Inverted Right Triangle Rows = ")
	fmt.Scanln(&row)

	fmt.Println("Hollow Inverted Right Triangle Star Pattern")

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

This Go example prints the hollow inverted right angled triangle pattern of a given character.

package main

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

func main() {

	reader := bufio.NewReader(os.Stdin)

	var i, j, row int

	fmt.Print("Enter Hollow Inverted Right Triangle Rows = ")
	fmt.Scanln(&row)

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

	fmt.Println("Hollow Inverted Right Triangle Pattern")

	for i = row; i > 0; i-- {
		for j = 1; j <= i; j++ {
			if i == 1 || i == row || j == 1 || j == i {
				fmt.Printf("%c", ch)
			} else {
				fmt.Printf(" ")
			}
		}
		fmt.Println()
	}
}
Enter Hollow Inverted Right Triangle Rows = 15
Character to Print in Inverted Right Triangle = @
Hollow Inverted Right Triangle 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.