Go Program to Print Left Pascals Star Triangle

Write a Go program to print the left pascals star triangle using for loop. 

package main

import "fmt"

func main() {

	var i, j, k, row int

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

	fmt.Println("Left Pascals Star Triangle Pattern")

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

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

This Go example prints the left pascals triangle 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 Left Pascals Star Pattern Rows = ")
	fmt.Scanln(&row)

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

	fmt.Println("Left Pascals Star Triangle Pattern")

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

	for i = row; i >= 1; i-- {
		for j = i; j <= row; j++ {
			fmt.Printf("  ")
		}
		for k = 1; k < i; k++ {
			fmt.Printf("%c ", ch)
		}
		fmt.Println()
	}
}
Enter Left Pascals Star Pattern Rows = 12
Character to Print in Left Pascals Triangle = @
Left 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.