Go Program to Print Hollow Right Pascals Star Triangle

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

package main

import "fmt"

func main() {

	var i, j, row int

	fmt.Print("Enter Hollow Right Pascals Star Pattern Rows = ")
	fmt.Scanln(&row)

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

	for i = 1; i <= row; i++ {
		for j = 1; j <= i; j++ {
			if j == 1 || j == i {
				fmt.Printf("*")
			} else {
				fmt.Printf(" ")
			}
		}
		fmt.Println()
	}

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

This Go example prints the hollow right pascals 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 Right Pascals Star Pattern Rows = ")
	fmt.Scanln(&row)

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

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

	for i = 1; i <= row; i++ {
		for j = 1; j <= i; j++ {
			if j == 1 || j == i {
				fmt.Printf("%c", ch)
			} else {
				fmt.Printf(" ")
			}
		}
		fmt.Println()
	}

	for i = 1; i <= row-1; i++ {
		for j = row - 1; j >= i; j-- {
			if j == row-1 || j == i || i == row {
				fmt.Printf("%c", ch)
			} else {
				fmt.Printf(" ")
			}
		}
		fmt.Println()
	}
}
Enter Hollow Right Pascals Star Pattern Rows = 14
Character to Print in Hollow Right Pascals Triangle = $
Hollow Right Pascals Star 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.