Go program to Print Sandglass Star Pattern

Write a Go program to print the sandglass star pattern using for loop. 

package main

import "fmt"

func main() {

	var i, j, k, row int

	fmt.Print("Enter Sandglass Star Pattern Rows = ")
	fmt.Scanln(&row)

	fmt.Println("**** Sandglass Star Pattern ****")

	for i = 0; i <= row-1; i++ {
		for j = 0; j < i; j++ {
			fmt.Printf(" ")
		}
		for k = i; k <= row-1; k++ {
			fmt.Printf("* ")
		}
		fmt.Println()
	}

	for i = row - 1; i >= 0; i-- {
		for j = 0; j < i; j++ {
			fmt.Printf(" ")
		}
		for k = i; k <= row-1; k++ {
			fmt.Printf("* ")
		}
		fmt.Println()
	}
}

This Go example prints the sandglass 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 Sandglass Star Pattern Rows = ")
	fmt.Scanln(&row)

	fmt.Print("Enter Character to Print in Sandglass = ")
	ch, _, _ := reader.ReadRune()

	fmt.Println("**** Sandglass Star Pattern ****")

	for i = 0; i <= row-1; i++ {
		for j = 0; j < i; j++ {
			fmt.Printf(" ")
		}
		for k = i; k <= row-1; k++ {
			fmt.Printf("%c ", ch)
		}
		fmt.Println()
	}

	for i = row - 1; i >= 0; i-- {
		for j = 0; j < i; j++ {
			fmt.Printf(" ")
		}
		for k = i; k <= row-1; k++ {
			fmt.Printf("%c ", ch)
		}
		fmt.Println()
	}
}

Enter Sandglass Star Pattern Rows = 10
Enter Character to Print in Sandglass = $
**** Sandglass Star Pattern ****
$ $ $ $ $ $ $ $ $ $ 
 $ $ $ $ $ $ $ $ $ 
  $ $ $ $ $ $ $ $ 
   $ $ $ $ $ $ $ 
    $ $ $ $ $ $ 
     $ $ $ $ $ 
      $ $ $ $ 
       $ $ $ 
        $ $ 
         $ 
         $ 
        $ $ 
       $ $ $ 
      $ $ $ $ 
     $ $ $ $ $ 
    $ $ $ $ $ $ 
   $ $ $ $ $ $ $ 
  $ $ $ $ $ $ $ $ 
 $ $ $ $ $ $ $ $ $ 
$ $ $ $ $ $ $ $ $ $